Alexander spent a total of 12.5 hours on a science project for the Science Fair. His sister, Laura, spent 16.6 hours on a science project. How many more hours did Laura spend on her project than Alexander spent on his?

Answer:

The First Table

Step-by-step explanation:

The y-values increase inconsistently, while the other tables are constant.

Answer:

40 goalas

Step-by-step explanation:

30% x ? = 12

12/30% =

12/(30/100) =

(100 x 12)/30 =

1,200/30 =

40

Answer:

[tex]4\frac{1}{2}[/tex]

Step-by-step explanation:

In order to find the answer to this question you have to divide the numerator by the denominator.

[tex]\frac{18}{4}[/tex]

[tex]4\times4=16[/tex]

[tex]18\div4=4^2[/tex]

[tex]4\frac{2}{4}[/tex]

Reduce:

[tex]2\div2=1[/tex]

[tex]4\div2=2[/tex]

[tex]=4\frac{1}{2}[/tex]

Hope this helps.

Answer:

x+3y=15

Step-by-step explanation:

your slope is 3 because there are 3 dots in between the points if it were on a graph

Answer:

he can get 8 bulbs

Step-by-step explanation:

first subtract 4 from 20 to get you total spent on just the bulbs, then you have 16 left so divide 16 by 2 and get 8

hope this helps!  have a good day!

Answer:

D

Step-by-step explanation:

1 1/8 +3/4= 1 7/8

3- 1 7/8

= 1 1/8

Answer:

D

Step-by-step explanation:

123456789101112131415

Answer:

8 albums

Step-by-step explanation:

Answer (3dp):

107.058

Step-by-step explanation:

(image is explanation)

Work Shown:

450 calories = 20 ounces

450/20 calories = 20/20 ounces ..... divide both sides by 20

22.5 calories = 1 ounce

This smoothie has 22.5 calories per ounce.

Answer:

Step-by-step explanation:

Three steps given end with:

The next step is, divide both sides by 9:

Correct answer option:

Answer:

C. 5/9

Step-by-step explanation:

10x = 5.5

  -x = 0.5

9x = 5

x = 5/9

therefore, the answer is C. 5/9

Answer:

45.3 times 4 equals 181.2

Step-by-step explanation:

Answer:

181.2

Step-by-step explanation:

2 1

45.3

*    4

_____

181.2

Multiplication.

Answer:

A

Step-by-step explanation:

[tex](f-g)(x)=f(x)-g(x)\\=(x-2)-(x^2+3x-4)\\=x-2-x^2-3x+4\\=-x^2-4x+2\\[/tex]

Therefore, answer is A.

Answer:

Step-by-step explanation:

Algebra II: Part 2 James Madison

Your quiz has been submitted successfully. 100%

Question 1  5 / 5 points

Given that f(x) = x – 2 and g(x) = x2 + 3x – 4, find (f – g)(x).

A: (f – g)(x) = –x2 –2x + 2

Question 2  5 / 5 points

Given that f(x) = x + 4 and g(x) = x + 7, find (g – f)(x).

A: (g – f)(x) = 3

Question 3  5 / 5 points

Let f(x) = 4x – 1 and g(x) = 2x. Find (f ∘ g)(–5).

A:  (f ∘ g)( – 5) = –41

Question 4  5 / 5 points

Which of the following is the inverse relation of the set below?

A:  {(3,–2), (–4,7), (7,3), (4,8)}

Question 5  5 / 5 points

What is the inverse of f(x) = 2x2 –4?

A:  y = ±x+24−−−√

Question 6  5 / 5 points

Which of the following function pairs are inverses?

A: f(x) = 2x – 3 and g(x) =x+32

Question 7  5 / 5 points

Which of the following is true?

A:  The horizontal line test is used to determine if a function's inverse will be a function.

Question 8  5 / 5 points

Evaluate81−−√4

A: 3

Question 9  5 / 5 points

Evaluate 1251⁄3.

A: 5

Question 10  5 / 5 points

Use the properties of exponents to simplify the expression 2(x13)65⋅y23.

A: 2x25⋅y23

Question 11  5 / 5 points

A population culture begins with 15 strands of bacteria and then doubles every 4 hours. This can be modeled as 15(2)t4, where t is time in hours. How many strands of bacteria are present at 12 hours?

A: 120 strands of bacteria

Question 12  5 / 5 points

Simplify 36√3√.

A: 23–√

Question 13  5 / 5 points

Simplify 73–√+12−−√−75−−√.

A: 43–√

Question 14  5 / 5 points

Simplify 2–√×22–√.

A: 4

Question 15  5 / 5 points

Simplify 83−−√.

A: 26√3

Question 16  5 / 5 points

Select the equation of the function shown in the graph.

A: f(x)=2x−−√4−5

Question 17  5 / 5 points

Identify the graph of f(x)=x−2−−−−√3−3.

t would not allow me to add the graft. But it is the answer with the line that goes all the way across the graft starting at -10 thru -4.5 and up to 10. The line looks like an "S"

Question 18  5 / 5 points

Identify the graph of f(x)=6x−−√4−1.

It would not allow me to add the graft. But it is -1 up to the right to about 9.5. Document uploaded

Question 19  5 / 5 points

Select the equation of the function shown in the graph.

A: f(x)=x−1−−−−√5+5

Question 20  5 / 5 points

Solve the inequality x+2−−−−√4>2.

A: x>14

Question 21  5 / 5 points

Solve the inequality −2x−−−−√−1<3.

A: −8<x≤0

Question 22  5 / 5 points

Solve the equation 2x−1−−−−−√=5.

A: x = 13

Question 23  5 / 5 points

Solve the equation x+1−−−−√+5=3.

A: There is no solution.

Question 24  5 / 5 points

Given thatf(x)=4x3x+3−−−−−√ and g(x)=2x+1−−−−√, find (fg)(x).

A: 2x3–√

Answer:

the axis of symmerty is 4 and vertex is (4,3) correct me if i am wrong and you can use desmos to help you it is a graphing calculator

Step-by-step explanation:

Answer:

6 months

Step-by-step explanation:

60,120,180,240,300,360

150+35=185. 185,220,255,290,325,360

Answer:

43 popsicles

Step-by-step explanation:

6 times 8 = 48

48 - 5 = 43

(im not sure about my answer)

Answer:

43 popsicles

Step-by-step explanation:

6 times 8 = 48

48 - 5 = 43

Total no. of births = 2000

Births of girls = 64

Birth% of girls

[tex] = \frac{64}{2000} \times 100[/tex]

[tex] = \frac{64}{20} [/tex]

[tex] = \frac{6.4}{2} [/tex]

[tex] = 3.2\%[/tex]

Hence, the number of girls are significantly low.

Answer:

-3x²+18x-27

Step-by-step explanation:

Given :

-3X²+18x

perfect square : (a+b)²=a² + 2ab + b²

[tex]\frac{-3x^{2} }{-3} +\frac{18x}{-3} ... something else[/tex] divide by -3 to have just a² type

x² -6x ...and something

compare with the perfect squere formula and we know a² is x² , a is x, so second term is 2xb and is -6x so b= -3

x²-6x+9 = (x-3)²

if you reverse and multiply by (-3) we have

-3x²+18x-27

Answer:

5 hours.

Step-by-step explanation:

12 ÷ 4 = 3. 3 pages an hour, which would mean 5 hours to write a total of 15 pages.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Answer:

10

Step-by-step explanation:

Answer:

Is yellow

Step-by-step explanation:

an open circle for "less than" or "greater than", and a closed circle for "less than or equal to"

Answer:

only 1 way

Step-by-step explanation:

both of them give their Rs.100 so now it's Rs.200 so pay RS 200 and they'll get Rs 50 as the remain

The number of ways of spending Rs. 150 will be 3.

Combination and permutation are two different ways of grouping elements of a set into subsets in mathematics. The elements of the subset can be listed in any order in a combination. The elements of the subset are listed in a specific order in a permutation.

Given that Raman and Raj go to a party each having Rs. 100, If they decide to expend Rs. 150.

The number of the spending will be calculated as,

Raman + Raj = 150

100 + 50 = 150

50 + 100 = 150

75 + 75 = 150

The number of ways will be three.

To know more about permutation and combination follow

https://brainly.com/question/4658834

#SPJ2

Answer:

25

Step-by-step explanation:

50% (1/2) of 50 is 25

50-25=25

Answer:

i 100% sure it 25

Step-by-step explanation:

Key:

m = slope

(x₁, y₁) coordinates of the first, lower point.

(x₂, y₂) coordinates of the second, higher point.

Answer:

In simple terms, slope is how steep a line is.

You can determine slope by:

Here is the full formula for slope:

I've created a little explanatory example below. Please let me now if you have any further questions. I am more than happy to assist you!

~ [tex]InLoveWithPugs[/tex]

Moderator

Math Enthusiast

Answer:

The perimeter is equal to 240.

Step-by-step explanation:

Since  the shape is a regular polygon, the sides are equal to each other, so those two equations are equal to each other.

So, to solve for x, then to find perimeter, we need to set the equations equal to each other.

5x + 10 = 7x + 4

Subtract 5x  and -4 from both sides.

6 = 2x

Divide each side by 2.

3 = x

Now, we plug it into one of the equations and multiply by 6 (6 sides in the regular polygon).

5( 6 + 2 )

40

40 * 6 = 240

The perimeter is equal to 240.

Perimeter of the regular polygon is 150 unit

Given:

Equal first side of regular polygon = 7x + 4

Equal second side of regular polygon = 5(x + 2)

Find:

Perimeter of the regular polygon

Computation:

We know that side of regular polygon are equal

7x + 4 = 5(x + 2)

7x + 4 = 5x + 10

7x - 5x = 10 - 4

2x = 6

x = 3

So,

Side of regular polygon = 7x + 4

Side of regular polygon = 7(3) + 4

Side of regular polygon = 25 unit

We know that given polygon is hexagon

Perimeter of hexagon = 6(a)

Perimeter of hexagon = 6(25)

Perimeter of hexagon = 150 unit

Learn more:

https://brainly.com/question/3295271?referrer=searchResults

Answer:

So, only B and D are trinomials.

Step-by-step explanation:

A trinomial is an algebraic expression having three terms in it.

A. 8x  

Not a trinomial because, it contains only one term.

B. 3y +5y2 + y

A trinomial because, it contains three terms.

C. 6x2

Not a trinomial because, it contains only one term.

D. x4 + x2 +1

A trinomial because, it contains three terms.

E. x2 +3

Not a trinomial because, it contains two terms only.

F. x11

Not a trinomial because, it contains only one term.

So, only B and D are trinomials.

Answer:

The product can be calculated.

The resulting matrix will have 3 rows and 3 columns.

Step-by-step explanation:

Matrix multiplication

To find the product of two matrices is only possible when the number of columns of the first matrix is equal to the number of rows of the second matrix.

If X is the first matrix with dimensions (n x m) and Y is the second matrix with dimensions (m x p), the product XY is possible and the dimensions of the resulting matrix are (n x p).

Matrix A has two rows and three columns (2x3)

Matric C has three rows and two columns (3x2)

If we wanted to calculate the product CA, the number of columns of C must be equal to the number of rows of A.

Since both numbers are 2, the product can be calculated.

The resulting matrix will have 3 rows and 3 columns.

Step-by-step explanation:

0.8=8/10

0.8/50

8/10/50

0.016

If you were looking for it in decimal form than its 0.016 but if I'm wrong let me know and I solve it again.