Can someone help me?

Answer:

did you ever fine out the answer to this lol

Step-by-step explanation:

Oil is spilled onto a kitchen floor. The area covered by the oil at time t is given by the function A, where A(t) is measured in square centimeters and t

is measured in seconds. The rate at which the area covered by the oil is changing at time t = 10 is  A'(10).

Given that:

To determine the rate at which the area covered by the oil is changing with time, we need to differentiate  A(t) with respect to time t.

∴

By differentiation:

[tex]\mathbf{\dfrac{dA}{dt} =A'(t)}[/tex]

∴

[tex]\mathbf{\dfrac{dA}{dt} \Big| _{t=10}=A'(t)\Big|_{t=10}}[/tex]

[tex]\mathbf{\dfrac{dA}{dt} =A'(10)}[/tex]

Therefore, we can conclude that the rate at which the area covered by the oil is changing at time t=10 is  A'(10).

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Answer: x>-1

Step-by-step explanation: I know this because I solved this equation. I know that is not a good explanation but I know it is right.

Answer:

x > -1

Step-by-step explanation:

-2x + 3 < 5

subtract 3 from both sides of inequality

-2x < 2

divide both sides of inequality by -2. Keep in mind whenever you divide or multiply by a negative number to both sides of inequality the symbol flips.

x > -1

Answer:

yoou have to find common numbers

Step-by-step explanation:

Answer:

75.63%

Step-by-step explanation:

Answer:

45.84

Step-by-step explanation:

Answer: 45.835 rounded to the nearest hundredth is 45.84.

Oh period       ..............................                  

Rationalize the denominator of 5√7/ √5

5√7 / √5

=> 5√7/√5×√5/√5

=> 5√7×5/(√5)^2

=> 5√35/5

=>√35

=> 5√7

Answer:

Step-by-step explanation:

Solving the equation

Multiplying both sides by 7 to clear fractions

Answer:

x = -14/9

Step-by-step explanation:

1/7 + 3/7(3x - 5) = -4

~Subtract 1/7 to both sides

3/7(3x - 5) = -29/7

~Multiply 7 to both sides

3(3x - 5) = -29

~Simplify left side

9x - 15 = -29

~Add 15 to both sides

9x = -14

~Divide 9 to both sides

x = -14/9

Best of Luck!

Answer:

1/25

Step-by-step explanation:

Answer:

Step-by-step explanation: The absolute value of 58 is the distance between 58 and 0 on a number line. See illustration below where x is 58: Since the distance between 58 and 0 on a number line is 58, we get the answer as follows: |58| = 58. Note that the absolute value of 58 can also be written as abs (58) which may be useful to know if you have a good calculator.

Answer:

18

Step-by-step explanation:

If forty percent of the class is boys, then sixty percent of the class is girls. So that means you must multiply .6 by 30 which will give you your answer of 18. .6 is a decimal form of 60%

The number of girls in the class is 60% or 18 girls

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total number of girls in the class be = G

Now , let the total number of boys in the class be = B

The total number of students in the class = S

The value of S = 30 students

The percentage of boys in the class = 40 %

So , the equation will be

The number of boys in the class = percentage of boys in the class x total number of students in the class

Substituting the values in the equation , we get

The number of boys in the class = ( 40/100 ) x 30

The number of boys in the class = 30 x 0.4

The number of boys in the class = 12 boys

So , the number of girls in the class = total number of students in the class - number of boys in the class

Substituting the values in the equation , we get

The number of girls in the class = 30 - 12

The number of girls in the class = 18 girls

Therefore , the value of G is 18 girls

Hence , The number of girls in the class is 60% or 18 girls

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Answer:

Negative

Step-by-step explanation:

Answer:

A positive x a negative will always be negative.

Step-by-step explanation:

No matter what if you have a negative value getting multiplied by a positive value then your product will be negative. (Unless your negative is multiplied by another negative, in which that would be positive.)

Answer:

3.5 (D)

Step-by-step explanation:

focusing on the right side of the decimal, 5 rounds 5 to 6. 6 rounds 4 to 5. Anything 5 or above rounds up! So the .5 rounds 4 to 5, making the answer 3.5. So sorry if this doesn't make sense, its kind of hard to explain.

Answer:graph B

Step-by-step explanation:

Answer:

GRAPH B

Step-by-step explanation:

Answer: I sacrificed my answer for yours here u go love

Step-by-step explanation:

Nancy should produce more large sizes of the male clothing for German men since the data is skewed left, meaning there are more data values that lie on the right side, representing taller males. For women, she can have a roughly even distribution of sizes since the data set is symmetric.

Nancy should produce more large sizes of the male clothing for German men and for women, she can have a roughly even distribution of sizes since the data set is symmetric.

Given is to find what distribution of clothing should Nancy have for German males and females.

Nancy should produce more large sizes of the male clothing for German men since the data is skewed left, meaning there are more data values that lie on the right side, representing taller males. For women, she can have a roughly even distribution of sizes since the data set is symmetric.

Therefore, Nancy should produce more large sizes of the male clothing for German men and for women, she can have a roughly even distribution of sizes since the data set is symmetric.

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Answer:

a = 14.73

Step-by-step explanation:

This ratio can also be written like this:

[tex]\frac{a}{27} = \frac{6}{11}[/tex]

Then you can cross multiply to get

11a = 6 x 27

11a = 162

Divide both sides by 11

11a / 11 = 162 / 11

a = 14.73

Answer:6

Step-by-step explanation:

By going on a calculator and typing 81 then click divide then press 13.5

Answer:

For the first three situations, the sum is zero.

Step-by-step explanation:

As the expenses are negative of earnings, so assuming the earning amount is positive while the spending amount is negative.

Shawna spends $20 and she earns $20,

So, the sum of the total amount is

-20+20=0

A diver dove down 20.14 feet under-water and then descended 20.14 feet.

First, the diver ascends 20.14 feet then descends the same.

As the ascending and the descending are opposite to each other.

The sum of both is

+20.14-20.14=0

So, in this case, the diver has a sum of zero.

For shooting over par the golfer have +2 points while for shooting under par the golfer have -2 points,

So, the total points are

+2-2=0

So, in this case, the golfer has a sum of zero points.

In the last case, you already have $5.50 in your pocket and then you receive $5.50 for doing your chore.

This time, there is an addition of $5.50 to the money you already have.

So, the total money, after receiving the $5.50 is

$5.50+$5.50=$11

In this case, the sum of the total amount is not zero.

Hence, for the first three situations, the sum is zero.

Answer:

$36

Step-by-step explanation:

20(1.80) = 36

Answer:

Shirts : $24

Pants : $23.80

Shoes : $21

Ties : $30.60

Step-by-step explanation:

For the shirt : Price = $15 Discount = 20% 2 shirts are bought

Price after the discount = (100% - 20%) x (2 x $15) = $24

For the pair of pants : Price = $28 ; Discount = 15% ; 1 pair of pants is bought

Price after the discount = (100% - 15%) x $28 = $23.80

For the shoes : Price = $35 Discount = 40% 1 pair of shoes are bought

Price after the discount = (100% - 40%) x $35 = $21

For the tie: Price = $12 Discount = 15% 3 ties are bought

Price after the discount = (100% - 15%) x ( 3 x $12) = $30.60

Answer:

Shirts : $24

Pants : $23.80

Shoes : $21

Ties : $30.60

Step-by-step explanation:

For the shirt : Price = $15 Discount = 20% 2 shirts are bought

Price after the discount = (100% - 20%) x (2 x $15) = $24

For the pair of pants : Price = $28 ; Discount = 15% ; 1 pair of pants is bought

Price after the discount = (100% - 15%) x $28 = $23.80

For the shoes : Price = $35 Discount = 40% 1 pair of shoes are bought

Price after the discount = (100% - 40%) x $35 = $21

For the tie: Price = $12 Discount = 15% 3 ties are bought

Price after the discount = (100% - 15%) x ( 3 x $12) = $30.60

Answer:

c 60.5 ft x 2ft

Step-by-step explanation:

60.5 ft x 2 = 121 ft

The required possible side length of the tablecloth is 11ft x 11ft.

Given that,
Mrs. Sullivan wants to make a square tablecloth for her dining room table. She has 121 ft? of fabric. What are the possible side lengths of the tablecloth to be determined.

A square is for sided regular polygon, where the length of all sides is identical and the angle between the adjacent side is 90°.

Here,
She has 121 ft² of fabric.
She wants to make a square tablecloth for her dining room table.\

Area of the square = a²
121 = a²
a = √121
a = 11 ft

Thus, the required possible side length of the tablecloth is 11ft x 11ft.

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Answer:

Hey!

[tex]3\frac{7}{8}[/tex] in decimal form is 3.875

Step-by-step explanation:

7/8 is 0.875

We just add this to 3 to make 3.875!

Answer:

The slope is 7.

Step-by-step explanation:

(-1, 2) and (1, 16)

Slope is found using the following formula:

(y₂ - y₁) / (x₂ - x₁)

First, let's label the coordinates (these can be in any order, as long as the second numbers in each coordinate are in the y slots and the first numbers are in the x slots:

y₂: 16

y₁: 2

x₂: 1

x₁: -1

Now, substitute into the original formula:

(y₂ - y₁) / (x₂ - x₁)

(16 - 2) / (1 - (-1))

Simplify

(14)/(2)

7

The slope is 7.

Hope this helps :)

Answer:

First one equals 16, second equals 4

Step-by-step explanation:

b*20=20b

320/20=16

Second

320/(b*20)

Replace b with 4 so it would be 320/(4*20)

4*20=80, 320/80=4

Answer:

19g+7?

Step-by-step explanation:

2g+19+4g-13+6g+1

19g+7

Answer:

The answer is 10

Step-by-step explanation:

Just follow PEMDAS

Answer: It is proportional because 195/3 equals 65 and 325/5 equals 65 as well, so it is proportional.

Hope this helps! :)