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2 years ago

Generate an equivalent expression for 7 (7h - 3) by distributing.

Mathematics

1 answer:

Sliva [168]2 years ago

5 0

Answer:7h-21

Step-by-step explanation:

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The circumference of a circle is 6 pi cm. What is the area of circle

AURORKA [14]

Answer:

A = 9 pi cm^2

Step-by-step explanation:

Circumference = 2 * pi *r

6pi = 2 * pi *r

Divide each side by pi

6 = 2r

Divide by 2

6/2 = 2r/2

3=r

Now we want to find the area

A = pi r^2

A = pi (3)^2

A = 9 pi cm^2

6 0

3 years ago

Read 2 more answers

Solve the system of equations.<br> 8.2 + 5y = 24<br> y = -42<br> C =<br> y =

Paul [167]

Answer:

8.2 + 5y = 24 is y = 3.16

y = -42 = 0

c=1

y=1

Step-by-step explanation:

i think these confirm to graphs if i'm wrong just tell me and i'll edit my question.

7 0

2 years ago

Explain when to use Mental Math

I am Lyosha [343]

It is best to use mental math with some equations (5x5 or something that is easy enough that work does not have to be shown 10 dived by 5

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2 years ago

Calculate the average rate of change of f(x) = x2 - 1 x - 4 for 2 ≤ x ≤ 6.

hoa [83]

Answer:

Hence, the average rate of change is:

$\dfrac{97}{12}$

Step-by-step explanation:

We are asked to calculate the average value of the function:

$f(x)=x^2-\dfrac{1}{x}-4$ in 2 ≤ x ≤ 6

The average rate of change of the function f(x) in the interval 2 ≤ x ≤ 6 is given as:

$\dfrac{f(6)-f(2)}{6-2}\\\\=\dfrac{f(6)-f(2)}{4}$

Now,

$f(6)=36-\dfrac{1}{6}-4\\\\f(6)=32-\dfrac{1}{6}\\\\f(6)=\dfrac{191}{6}$

$f(2)=4-\dfrac{1}{2}-4\\\\\\f(2)=-\dfrac{1}{2}$

Hence, the average rate of change is:

$\dfrac{\dfrac{191}{6}-\dfrac{-1}{2}}{4}\\\\=\dfrac{194}{6\times 4}\\\\=\dfrac{97}{12}$

Hence, the average rate of change is:

$\dfrac{97}{12}$

8 0

2 years ago

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There is a dining room table with an area of 28 square feet. The length is 3 feet longer than the width. What is the width of th

Ivahew [28]

The width is 4 ft and the length is 7 feet

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2 years ago