In the xy-plane, what is the y-intercept of the graph of the equation y=6(x-1/2)(x+3)?

Answers

Answer 1

Answer:

The y-intercept of the graph of the equation is -9. This means that the graph crosses the y-axis at the point (0, -9).

Step-by-step explanation:

To solve this question, we need to plug in x = 0 into the given equation and simplify. We get:

y = 6(0 - 1/2)(0 + 3) y = 6(-1/2)(3) y = -9

Therefore, the y-intercept of the graph of the equation is -9. This means that the graph crosses the y-axis at the point (0, -9).


Related Questions

A waitress sold 11 ribeye steak dinners and 14 grilled salmon dinners, totaling $551.11 on a particular day. Another day she sold 15 ribeye steak dinners and 7 grilled salmon dinners, totaling $581.47. How much did each type of dinner cost?

Answers

Answer:

A ribeye steak dinner costs $32.23 and a grilled salmon dinner costs $14.04.

Step-by-step explanation:

Let's use variables to represent the cost of each dinner. Let's say that the cost of a ribeye steak dinner is "r" and the cost of a grilled salmon dinner is "s".

From the first day's sales, we know:

11r + 14s = 551.11

From the second day's sales, we know:

15r + 7s = 581.47

We now have two equations with two variables, which we can solve using elimination or substitution.

Let's use elimination. If we multiply the first equation by 15 and the second equation by 11, we can eliminate the "r" variable:

165r + 210s = 8266.65165r + 77s = 6396.17

Subtracting the second equation from the first, we get:

133s = 1870.48

Dividing both sides by 133, we get:

s = 14.04

So a grilled salmon dinner costs $14.04.

We can substitute this value back into one of the original equations to solve for "r". Let's use the first equation:

11r + 14(14.04) = 551.1111r + 196.56 = 551.1111r = 354.55r = 32.23

So a ribeye steak dinner costs $32.23.

Therefore, a ribeye steak dinner costs $32.23 and a grilled salmon dinner costs $14.04.

Consider the line 6x-7y = 4. What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this line?

Answers

The slope of a line parallel to this line is 6/7.

The slope of a line perpendicular to this line is -7/6.

What are parallel lines?

In Mathematics and Geometry, parallel lines can be defined as two (2) lines that are always the same (equal) distance apart and never meet.

In Mathematics and Geometry, two (2) lines are parallel under the following conditions:

Slope, m₁ = Slope, m₂

Based on the information provided about this line, we have the following equation in standard form;

6x - 7y = 4

By making y the subject of formula, we have:

7y = 6x - 4

y = 6x/7 - 4

In Mathematics and Geometry, a condition that is true for two lines to be perpendicular is given by:

m₁ × m₂ = -1

6/7 × m₂ = -1

6m₂ = -7

Slope, m₂ = -7/6

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The questions I need answered are in the picture… help plsss

Answers

The graph of the linear equation y = (1/2)*x + 3 can be seen in the image at the end.

How to graph the linear equation?

Here we want to graph the linear equation:

y = (1/2)*x + 3

To graph it we need to find a few points on the line, graph them on a coordinate axis and then draw a line that connects them.

The first point that we can use is the y-intercept, it is what we get when we evaluate in x = 0.

y = (1/2)*0 + 3

The point is (0, 3)

Then we can get other points by evaluating in different values of x, for example, if x = 2

y = (1/2)*2 + 3 = 1+ 3 =4

If x = 4

y = (1/2)*4 + 3 = 2 + 3 = 5

So we have the points (2, 4) and (4, 5)

Now just graph all these points on a cordinate axis and connect them with a line, you will get a graph like the one in the image below.

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QUESTION 6·1 POINT
A medical experiment on tumor growth gives the following data table.



x y
81 25
90 36
92 41
103 59
151 60


The least squares regression line was found. Using technology, it was determined that the total sum of squares (SST) was 914.8 and the sum of squares of regression (SSR) was 568.5. Calculate R2, rounded to three decimal places.

Provide your answer below:

Answers

The calculated R2 value is 0.621, indicating that 62.1% of the variability in tumor growth can be explained by the linear regression model.

In statistics, the coefficient of determination, denoted by R2, is a measure of how well the regression line fits the data. It represents the proportion of the variance in the dependent variable (y) that is predictable from the independent variable (x).

To calculate R2, we use the formula R2 = SSR/SST, where SSR is the sum of squares of regression and SST is the total sum of squares.

From the given data, SSR = 568.5 and SST = 914.8. Thus, R2 = 568.5/914.8 = 0.621, rounded to three decimal places.

This means that 62.1% of the variability in the tumor growth can be explained by the linear regression model. The remaining 37.9% of the variability is unexplained and may be due to other factors not included in the model.

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Find the approximate area of the shaded region below, consisting of a right triangle with a circle cut out of it. Use 3.14 as an
approximation for pi.

a. 1.254 square meters
b. 312 square meters
c. 2, 822 square meters
d. 314 square meters

Answers

Answer:

(a) 1.254 square meters

Step-by-step explanation:

We are given a figure, consisting of a right triangle with a circle cut out of it.

To Calculate : area of the shaded region below,

First Let's find the Area of the right triangle:

Area(triangle) = 1/2 × Base × Height

= 1/2 × 56 × 56

= 1/2 × 3136

= 3136/2

= 1568 m².

Now, We are diameter of the circle = 20 m

Radius of the circle = 20/2 = 10 m

Area of circle = πr²

Acc. to question we have to use 3.14 as an

approximation for pi.

Area (circle) = 3.14 × 10 × 10

Area (circle) = 3.14 × 100

Area (circle) = 314 m²

Area of shaded region = Area of triangle - Area of circle =

= 1568 m² - 314 m²

= 1.254 square meters

Therefore, The approximate area of the shaded region is 1.254 square meters.

Option (a) is the required answer.

Answer this pleaseeee

Answers

The solution of the trigonometric equation on the interval (, 360) is

x = 90° or x = 126.87° or x = 216.87

What is a trigonometric equation?

A trigonometric equation is an equation that contains trigonometric ratios.

Given the trigonometric equation

2sinx = 1 - cosx, we proceed to solve for x as follows.

Since 2sinx = 1 - cosx

Using sin²x = 1 - cos²x

⇒ sinx = √(1 - cos²x )

Substituting this into the equation, we have that

2sinx = 1 - cosx

2√(1 - cos²x ) = 1 - cosx

Squaring both sides, we have that

[2√(1 - cos²x )]² = (1 - cosx)²

4(1 - cos²x ) = (1 - cosx)²

4 - 4cos²x = 1 - 2cosx + cos²x

Collecting similar terms, we have that

1 - 4 - 2cosx + 4cos²x + cos²x = 0

- 3 - 2cosx + 5cos²x = 0

Re-arranging the equation, we have that

5cos²x - 2cosx - 3 = 0

Let cosx = y

So, we have that

5y² - 2y - 3 = 0

Factorizing, we have that

5y² - 2y - 3 = 0

5y² - 5y + 3y - 3 = 0

5y(y - 1) + 3(y - 1) = 0

(5y + 3)(y - 1) = 0

⇒ 5y + 3 = 0 or y - 1 = 0

⇒ 5y = -3 or y = 1

⇒ y = -3/5 or y = 1

Since y = cosx, we have that

cosx = -3/5 or cosx = 1

cos(180° - x) = 3/5 or cos(270° - x) = 3/5 or cosx = 1

Taking inverse cosine, we have that

180° - x = cos⁻¹(3/5) or 270° - x = cos⁻¹(3/5) or x = cos⁻¹(1)

180° - x = 53.13° or 270° - x = 53.13° or x = 90°

x = 180° - 53.13° or x = 270° - 53.13° or x = 90°

x = 126.87° or x = 216.87 or x = 90°

So, the solution is

x = 90° or x = 126.87° or x = 216.87

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Stephanie bought two rugs. One rug is 15 feet long, and the other rug is 142 feet long. Each rug has a width of 10 feet.
What is the total area in square feet of the two rugs?
A 175 ft²
B 155 ft²
C 147.5 ft²
D 302.5 ft²
*please help me​

Answers

The total area of the two rugs in square feet is calculated as: 1570 ft² (none of the options are correct).

How to Find the Total Area of the Rug?

To find the total area of the two rugs, we first need to calculate the area of each rug by multiplying its length and width.

Area of the first rug = 15 ft x 10 ft = 150 ft²

Area of the second rug = 142 ft x 10 ft = 1420 ft²

Now, we can find the total area by adding the area of both rugs:

Total area = 150 ft² + 1420 ft² = 1570 ft²

Therefore, the answer is not one of the options provided.

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can someone help me please

Answers

The matrix formed by performing the row operation 4R₁ + R₂ — R₂ on M will have R₁ = [1 0 3] and R₂ = [ -1 2 10]

What is a matrix row operation

Row operations are a set of operations that can be performed on the rows of a matrix in order to transform it into a row equivalent matrix, which has the same solution set as the original matrix.

performing the row operation 4R₁ + R₂ — R₂ on M, we have;

4(1) + (-5) = -1 {row 2 column 1}

4(0) + 2 = 2 {row 2 column 2}

4(3) + (-2) = 10 {row 2 column 3}

Therefore, the matrix formed by performing the row operation 4R₁ + R₂ — R₂ on M will have R₁ = [1 0 3] and R₂ = [ -1 2 10]

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Please help me with this

Answers

An example of a function that models a linear relationship between two quantities, x and y is y = mx + b

How to explain the function

We need to use the equation of a straight line, which is commonly expressed in slope-intercept form as:

y = mx + b

In this function, x represents the independent variable, m is the slope of the line, and b is the y-intercept. To use this function, we simply plug in the values of x, m, and b that correspond to the specific relationship we are modeling.

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help please

the triangle above has the following measures. q = 7cm m

Answers

Answer:

Put your calculator in degree mode.

sin(35°) = 7/r

r sin(35°) = 7

r = 7/sin(35°) = 12.2 cm

A triangle is shown in the image 28 inches 32 inches 8 inches what is the area of the triangle

Answers

The area of the triangle is 128 square inches.

How to find the area of the triangle

To find the area of a triangle, you can use the formula:

Area = (1/2) * base * height

In this case, the base of the triangle is 32 inches and the height is 8 inches.

Plugging these values into the formula, we get:

Area = (1/2) * 32 * 8

Area = 16 * 8

Area = 128 in²

So, the area of the triangle is 128 square inches.

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A triangle is shown in the image. A triangle with a height of 8 inches. The height is perpendicular to the base labeled 32 inches. The side from the top of the perpendicular side to the base is labeled 28 inches. What is the area of the triangle? 256 in2 224 in2 128 in2 112 in2

Apply the United States rule to determine the balance at maturity and the total interest paid if the borrower makes two partial payments and the remainder of the loan is paid at maturity.
Principal $1450
Interest Rate​ % 15.0
Loan Length​ (Days) 280
Partial Payment
$5800.00
$4350.00
Payment on Day​ #
112
196

Answers

Answer: The United States rule is a method for calculating interest and balances on loans that have partial payments during their term. The rule assumes that each partial payment is applied to the interest first, then to the principal. Here's how to use the United States rule to calculate the balance and interest for this loan:

Calculate the daily interest rate by dividing the annual interest rate by 360 (the number of days in a standard year for most loans).

Daily Interest Rate = 15.0% / 360 = 0.04167%

Calculate the interest due for the first partial payment of $5800 made on day 112. Since this payment is larger than the remaining principal, it will pay off the loan entirely and no interest will accrue beyond this date.

Days between start of loan and first payment = 112 daysInterest due on first payment = (1450 x 0.04167% x 112) = $8.10Principal remaining after first payment = $0.00

Calculate the interest due for the second partial payment of $4350 made on day 196.

Days between first payment and second payment = 84 daysInterest due on second payment = (0 x 0.04167% x 84) = $0.00Principal remaining after second payment = $0.00

Calculate the interest due on the remaining principal at maturity (day 280).

Days between second payment and maturity = 84 daysInterest due at maturity = (0 x 0.04167% x 84) = $0.00

Add up the interest due from each period to get the total interest paid over the life of the loan.

Total interest paid = $8.10 + $0.00 + $0.00 = $8.10

Add up the principal amounts from each payment to get the total amount paid.

Total amount paid = $5800.00 + $4350.00 = $10,150.00

Subtract the total amount paid from the original principal to get the balance at maturity.

Balance at maturity = $1450.00 - $10,150.00 = -$8700.00 (which means the lender owes the borrower this amount)

Therefore, the balance at maturity is -$8700.00 (meaning the lender owes the borrower this amount) and the total interest paid over the life of the loan is $8.10.

Imagine Math simple interest

Answers

The simple interest which has the least amount of interest is investment of $ 2000 at 10 % for 3 years

Given data ,

SI is the simple interest, P is the principal amount, r is the annual interest rate, and t is the time in years.

Given that P = 2000, r = 10% = 0.1, and t = 3 years, we can calculate the simple interest as:

SI = 2000 x 0.1 x 3 = 600

Hence , the simple interest earned on an investment of $2000 for 10% at SI for 3 years is $600

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Jeannie designs jewelry. The figure shows a
pendant on a necklace Jeannie is making. It is
composed of three individual beads.
The larger triangular bead cost $1.52. The
rectangular bead costs $0.42, and the smaller
triangular bead costs $0.92.
What is the cost per square millimeter of the
pendant? Round your answer to the nearest
hundredth.

Answers

Answer: ≅ $0.02

Step-by-step explanation:

First, lets find the area of the large triangle

0.5 x 14 x 11 = 77 mm^2

Next lets find the area of the middle rectangle:

4 x 14 = 56 mm^2

Last lets find the area of the small triange:

0.5 x 14 x 3 = 21 mm^2

So the total area is: 77 + 56 + 21 = 154 mm^2

the total cost is given to be: 1.52 + 0.42 + 0.92 = $2.86

dividing the cost by the area to find the cost/mm:

2.86/154 ≅ $0.02

5. The Smiths took out a $155,500, 30-year mortgage. The
monthly payment was $992. What will be their total interest
charges after 30 years?
Question 6
3 pts

Answers

Answer:

$176420

Step-by-step explanation:

Monthly payment = $992

Yearly payment = 992 × 12 = $11064

Total payment = 11064 × 30 = $331920

Interest = 331920 - 155500 = $176420. The interest seems too much, are you sure there's no mistake in the question? Maybe the monthly payment is more than what you've written here?

Write an equation of a circle with the given center and radius. center (3,4) and radius 6

(x-3)^2+(y-4)^2=36
(x-3)^2+(y-4)^2=6
(x+3)^2+(y-4)^2=36
(x+3)^2+(y-4)^2=6

Answers

Answer:

[tex] {(x - 3)}^{2} + {(y - 4)}^{2} = 36[/tex]

The box plot represents the number of tickets sold for a school dance.

A horizontal line labeled Number of Tickets sold that starts at 11, with tick marks every one unit up to 25. The graph is titled Tickets Sold for A Dance. The box extends from 17 to 20 on the number line. A line in the box is at 19. The lines outside the box end at 12 and 24.

Which of the following is the appropriate measure of center for the data, and what is its value?

The mean is the best measure of center, and it equals 3.
The mean is the best measure of center, and it equals 19.
The median is the best measure of center, and it equals 3.
The median is the best measure of center, and it equals 19.

Answers

An appropriate measure of center for the data, and its value include the following: D. The median is the best measure of center, and it equals 19.

What is a box-and-whisker plot?

In Mathematics and Statistics, a box plot is sometimes referred to as box-and-whisker plot and it can be defined as a type of chart that can be used to graphically or visually represent the five-number summary of a data set with respect to locality, skewness, and spread.

Based on the information provided about the data set, the five-number summary for the given data set include the following:

Minimum (Min) = 12.

First quartile (Q₁) = 17.

Median (Med) = 19.

Third quartile (Q₃) = 20.

Maximum (Max) = 24.

In conclusion, the best measure of center is the median and it is equal to 19.

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Please if you know the answer tel me thank you.

Answers

Answer:

Step-by-step explanation:

(a)  currently the  mode is pink.  Mode means which one occurs the most.

If you take a pink out.  Now P=3  G=3 and Y=3

(a) PINK

(b) Yellow, you want yellow to be the most/mode  so they put a yellow back in

A subscription to a live streaming program normally costs $29 but is on sale for 25% off. An 8% tax is added at checkout. What is the total cost?

$7.25
$21.75
$23.49
$39.15

Answers

$23.49, $7.25 is how much money you get off, the sale price is $21.75 before tax, after tax it’s 23.49.

A subscription to a live streaming program normally costs $29 but is on sale for 25% off. An 8% tax is added at checkout then the total cost is $23.49.

To calculate the total cost, first, we find the discounted price of the subscription. A 25% discount on $29 is calculated by multiplying $29 by 0.25 (25% as a decimal), which gives us a discount of $7.25. Subtracting the discount from the original price, we get the discounted price of $29 - $7.25 = $21.75.

Next, we need to add the 8% tax to the discounted price. To calculate the tax amount, we multiply $21.75 by 0.08 (8% as a decimal), which gives us $1.74. Adding this tax amount to the discounted price, we get the total cost as $21.75 + $1.74 = $23.49.

Step 1: Calculate the discount amount:

Discount = 25% of $29

Discount = 0.25 * $29

Discount = $7.25

Step 2: Find the discounted price:

Discounted Price = Original Price - Discount

Discounted Price = $29 - $7.25

Discounted Price = $21.75

Step 3: Calculate the tax amount:

Tax Amount = 8% of Discounted Price

Tax Amount = 0.08 * $21.75

Tax Amount = $1.74

Step 4: Calculate the total cost:

Total Cost = Discounted Price + Tax Amount

Total Cost = $21.75 + $1.74

Total Cost = $23.49

So, the total cost after applying the 25% discount and adding an 8% tax at checkout is $23.49.

- Discount = 0.25 * $29 = $7.25

- Discounted Price = $29 - $7.25 = $21.75

- Tax Amount = 0.08 * $21.75 = $1.74

- Total Cost = $21.75 + $1.74 = $23.49

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Find the area of this triangular prism. Be sure to include the correct unit in your answer

Answers

The surface area of the prism is 360in²

What is surface area of prism?

A prism is a solid shape that is bound on all its sides by plane faces.

The surface area of a prism is expressed as;

SA = 2B + ph

where h is the height of the prism and B is the base area , p is the perimeter of the base.

Base area = 1/2 × 5 × 12

= 5 × 6 = 30 in²

Perimeter of the base = 5+12+13

= 30 in²

height = 10 in

SA = 2 × 30+30× 10

= 60 + 300

= 360 in²

therefore the surface area of the prism is 360 in²

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pls pls help me with answer(correct it)

Answers

I think the answer should be 450 cm squared. Because to find the area of the triangle, you need to do this: 0.5*one leg of triangle*other leg of triangle

cost function definition

Answers

a formula used to predict the cost that will be experienced at a certain activity level.

In a class of students, the following data table summarizes how many students have a
brother or a sister. What is the probability that a student chosen randomly from the
class has a brother?

Answers

The probability that a student chosen randomly from the class has a brother is 57%.

Given is a data table summarizes how many students have a brother or a sister.

We need to find the probability that a student chosen randomly from the class has a brother,

So, we know, probability = favorable outcome / total outcome

Here, favorable outcome = having a brother = 12 + 4 = 16

Total outcomes = all the students = 12+4+10+2 = 28

So,

P(having a brother) = 16/28 = 0.57 = 57%

Hence the probability that a student chosen randomly from the class has a brother is 57%.

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WY is a midsegment of AVXZ.
If VZ = 5t + 51 and WY = 11t, what is VZ?

Answers

VZ is 92.5. WY is the midsegment of AVXZ, it means that WY is parallel to AX and its length is half the length of AX.

what is midsegment  ?

A midsegment of a triangle is a line segment connecting the midpoints of two sides of the triangle. It is also known as a midline. The midsegment of a triangle is parallel to the third side of the triangle, and its length is half the length of the third side.

In the given question,

Since WY is the midsegment of AVXZ, it means that WY is parallel to AX and its length is half the length of AX.

Let's call the length of AX as L. Then, we have:

WY = 11t = 1/2 L

Multiplying both sides by 2, we get:

22t = L

Now, we can use this information to find VZ. Since WY is also parallel to VZ, we have:

WV = VZ

Substituting WV = L/2 and VZ = 5t + 51, we get:

L/2 = 5t + 51

Substituting L = 22t, we get:

22t/2 = 5t + 51

11t = 5t + 51

6t = 51

t = 8.5

Substituting t = 8.5 in the equation for VZ, we get:

VZ = 5t + 51 = 5(8.5) + 51 = 92.5

Therefore, VZ is 92.5.

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A woman earned wages of 33,900 receive 2600 and interest from savings account and contributed 3600 to tax deferred retirement plan she was entitled to a personal exemption of 3500 and her deductions totaling 5440 find her gross income adjusted income and taxable income

Answers

The woman's gross income, adjusted income and taxable income are:

gross income - $ 36, 500adjusted income - $ 32, 900taxable income -$ 23, 960

How to find the types of income ?

The gross income to the woman is:

= Wages + interest

= 33, 900 + 2, 600

= $ 36, 500

The adjusted gross income :

= Gross income - Retirement plan contribution

= 36, 500 - 3, 600

= $ 32, 900

The taxable income ;

= AGI - Personal exemption - Deductions

= 32, 900 - 3, 500 - 5, 440

= $ 23, 960

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Explain by using an example why you need to multiply when converting from a larger unit to a smaller unit

Answers

Multiplying is necessary because each larger unit contains a certain number of the smaller units and we need to account for that conversion factor.

Why is multiplication necessary with examples?

For example, when converting from meters to centimeters where we know that 1 meter is equal to 100 centimeters.

To convert 3 meters to centimeters, we need to multiply by the conversion factor of 100 which gives us:

= 3 meters * 100 centimeters/meter

= 300 centimeters

So, without the multiplication, we would not account for the fact that each meter contains 100 centimeters. This principle applies to all conversions from larger units to smaller units and it is important to remember to ensure accurate conversions.

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Which linear equation is represented in the graph?

*If correct giving brainlyest*

A. y = 2x – 1


B. y = –2x – 1


C. y = –2x + 1


D. y = 2x + 1

Answers

Answer:

C

x1=2

-2(2)+1=3

which is the answer for y1

Consider the five points
(0,0),(0,5),(6,0),(3,4),(−1,8)
in
R
2

and name them
(x
i

,y
i

)
for
i=1,…,5
. The objective is to find two coefficients
a,b∈R
such that the boundary of the ellipse
ax
2
+by
2
=1
is as close to the above 5 points as possible. To this end, we define the error function: \[ f(a, b)=\sum_{i=1}^{5}\left(a x_{i}^{2}+b y_{i}^{2}-1\right)^{2} \] Calculate the optimal values of
(a,b)
by finding the local minima of the error function
f(a,b)
.

Answers

The optimal values of (a,b) that minimize the error function f(a,b) are approximately (0.7205, 0.5369).

What is a function?

A function is a relation between a set of inputs and a set of possible outputs, with the property that each input is related to exactly one output.

To find the optimal values of (a,b), we need to minimize the error function f(a,b). We can do this by taking partial derivatives of f(a,b) with respect to both a and b, and then setting them equal to zero:

∂f/∂a = 2∑([tex]x_{i}^{2}[/tex])(a [tex]x_{i}^{2}[/tex]+ b [tex]y_{i}^{2}[/tex] - 1) = 0

∂f/∂b = 2∑([tex]y_{i}^{2}[/tex])(a [tex]x_{i}^{2}[/tex] + b [tex]y_{i}^{2}[/tex] - 1) = 0

We can simplify these equations by defining the following sums:

Sxx = ∑[tex]x_{i}^{4}[/tex]

Syy = ∑[tex]y_{i}^{4}[/tex]

Sxy = ∑[tex]x_{i}^{2}y_{i}^{2}[/tex]

Sx = ∑[tex]x_{i}^{2}[/tex]

Sy = ∑[tex]y_{i}^{2}[/tex]

Using these sums, we can rewrite the partial derivatives as:

∂f/∂a = 2(aSx² + bSxy² - Sx)

∂f/∂b = 2(aSxy² + bSy² - Sy)

Setting these equal to zero and solving for a and b, we get:

a = (SySx - Sxy²) / (SxSyy - Sxy²)

b = (SxSy - Sxy²) / (SxSyy - Sxy²)

Plugging in the values for Sxx, Syy, Sxy, Sx, and Sy, we get:

a = 0.7205

b = 0.5369

Therefore, the optimal values of (a,b) that minimize the error function f(a,b) are approximately (0.7205, 0.5369).

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Duante is wrapping a present that is 1 foot wide, 10 inches long, and 8 inches high. What is the minimum amount of
wrapping paper he will need?

Answers

592 square inches  is the minimum amount of wrapping paper Duante needed.

Duante will need a minimum of 592 square inches of wrapping paper.

Lets convert the dimensions to the same units.

Since there are 12 inches in a foot, the dimensions are:

Width = 1 foot = 12 inches

Length = 10 inches

Height = 8 inches

The rectangular box is known as a cube

The surface area of a b=cuboid is given by SA = 2lw + 2lh + 2wh

where l is length, w is width and and h is the height of the cuboid

Substituting the given values, we get:

SA = 2(10)(12) + 2(10)(8) + 2(12)(8)

= 240 + 160 + 192

= 592

Therefore, Duante will need a minimum of 592 square inches of wrapping paper.

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ACTIVITY 3: Solve the following equations.

Answers

The value of x in each expressions are:

1) 6

2) 1

3) -3

4) -21

5) -4

We have,

The expressions are:

1)

[tex]3^x = 9^3[/tex]

And,

9³ = (3²)³ = [tex]3^6[/tex]

So,

[tex]3^x = 3^6[/tex]

And,

x = 6

2)

[tex]4^{x + 1}[/tex] = 16

16 = 4²

So,

x + 1 = 2

x = 2 - 1

x = 1

3)

[tex](1/3)^x[/tex] = 27

27 = 3³

So,

[tex]3^{-1x}[/tex] = 3³

-x = 3

x = -3

4)

[tex]5^{3x}[/tex] = [tex]25^{x - 1}[/tex] =

[tex]5^{3x}[/tex] = [tex]5^{2x - 21}[/tex]

3x = 2x - 21

3x - 2x = -21

x = -21

5)

[tex]2^{-x}[/tex] = 16

16 = [tex]2^4[/tex]

So,

-x = 4

x = -4

Thus,

The value of x in each expression are:

1) 6

2) 1

3) -3

4) -21

5) -4

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