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4 years ago

11

Will give brainliest answer to whoever answers correctly and explains how they got their answer. I've been working on this for h

alf an hour and have tried so many equations but still no luck!

1 answer:

Oksanka [162]4 years ago

5 0

A1/27 = A2/39 =>

A2 = A1*39/27

A2 = 711×39/27

A2 = 1027 m^2

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Three evaluating expression Equation

Feliz [49]

Answer:

³y+7-6x=16

Step-by-step explanation:

this is an example of a 3 evaluating expression equation. *I think*

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3 years ago

How many permutations exist of the letters a, b, c, d taken two at a time?

Fittoniya [83]

The number of permutations of the 4 different letters, taken two at a time, is given by:
$4P2=\frac{4!}{2!}=12$

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4 years ago

Read 2 more answers

What is the sum or whatever of this equation. This equation is V = πx3^2x8

navik [9.2K]

Answer:

$V=226.08$

Step-by-step explanation:

To evaluate $V$ from the following expression:

$V=\pi\times3^2\times 8$

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3 years ago

please help! functions and relations. f(x)= square root of x-4. find the inverse of f(x) and it’s domain.

likoan [24]

ANSWER:

$\:D.\text{ }f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge-4$

STEP-BY-STEP EXPLANATION:

We have the following equation:

$f(x)=\sqrt{x}-4$

The inverse is the following (we calculate it by replacing f(x) by x and x by f(x)):

$\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\ \\ \sqrt{f^{-1}(x)}=x+4 \\ \\ f^{-1}(x)=(x+4)^2 \end{gathered}$

The domain would be the range of the original equation, and it would be the range of values that f(x) could take, which was from -4 to positive infinity, that is, f(x) ≥ -4.

Therefore, the domain is x ≥ -4.

So the correct answer is D.

$\:f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge -4$

4 0

1 year ago

Type ALL the steps of writing the equation of the line given the slope of the line is −4 and a point on the line is (−2,1).

Mars2501 [29]

Answer:

y = -4x - 7

Step-by-step explanation:

we use the slope intercept formula given by; y = mx + b

b = y intercept, which is when x = 0

m = slope

so they tell us the slope.. we just need to find b - the y intercept.

y = mx + b

plug in your coordinates (-2,1)

1 = -4(-2) + b

1 = 8 + b

1 - 8 = b

-7 = b

put it all together.

y = -4x - 7

3 0

3 years ago