Ask question

Ask question

All categories

3 years ago

6

PLEASE REPLY ASAP What is the formula for finding the area of a regular polygon with perimeter P and apothem length a // A.) 719

sq units B.) 1039 sq units C.) 1359 sq units D.) 373 sq units

1 answer:

lianna [129]3 years ago

6 0

Area = 1/2 perimeter times the apothem

You might be interested in

Notice that the original recipe calls for 1/4 cup of water. If you put in 3/8 cup of water, by how much have you multiplied the

nika2105 [10]

Answer:

multiply by 12 and would serve 18 people

Step-by-step explanation:

I did a test for it

6 0

3 years ago

What two numbers add to get to 17 and multiply to get to -308

Triss [41]

11 and -28

11x-28=-308
11+-28=-17

5 0

2 years ago

Which ordered pair is a solution of y > 2x - 3?

Alex73 [517]

Answer:

Lets look at the problem
Rearrange
C

4 0

2 years ago

Read 2 more answers

Rotate the axes to eliminate the xy-term in the equation. Then write the equation in standard form.

kirill115 [55]

Answer:

$\dfrac{x'^2}{2}-\dfrac{y'^2}{2}=1$

Step-by-step explanation:

The rotation by angle $\theta$ formulas are

$\left\{\begin{array}{l}x=x'\cos \theta-y'\sin \theta\\y=x'\sin \theta+y' \cos \theta\end{array} \right.$

To eliminate the xy-term, we have to rotate by 45°, so

$\left\{\begin{array}{l}x=x'\cos 45^{\circ}-y'\sin 45^{\circ}\\y=x'\sin 45^{\circ} +y' \cos 45^{\circ}\end{array} \right.$

$\left\{\begin{array}{l}x=x'\dfrac{\sqrt{2}}{2}-y'\dfrac{\sqrt{2}}{2}\\y=x'\dfrac{\sqrt{2}}{2} +y' \dfrac{\sqrt{2}}{2}\end{array} \right.$

Substitute them into the equation $xy+1=0:$

$\left(x'\dfrac{\sqrt{2}}{2}-y'\dfrac{\sqrt{2}}{2}\right)\cdot \left(x'\dfrac{\sqrt{2}}{2}+y'\dfrac{\sqrt{2}}{2}\right)+1=0\\ \\\left(x'\dfrac{\sqrt{2}}{2}\right)^2 -\left(y'\dfrac{\sqrt{2}}{2}\right)^2+1=0\\ \\\dfrac{x'^2}{2}-\dfrac{y'^2}{2}=1$

8 0

2 years ago

(X+ 9)(x-2) -9x- 6<br> What expression is equivalent to the given expression?

aleksley [76]

Answer:

$x^{2}-2x-24$

Step-by-step explanation:

First, expand the parentheses using multiplication:

$(x^{2} -2x+9x-18) -9x-6$

Now we simply combine life terms, giving us:

$x^{2}-2x-24$

Hope this helps!

6 0

2 years ago

Read 2 more answers