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3 years ago

Evaluate 2 to the -5 power

Mathematics

2 answers:

IRINA_888 [86]3 years ago

8 0

1/32 its pretty simple come on man

Xelga [282]3 years ago

4 0

-10 bro bro to easy mark as brainless plz

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are any two regular polygons similar. The area of the smaller figure is about 390 cm^2. choose the best estimate of the area of

galben [10]

Answer:

The best estimate of the area of the larger figure is $693\ cm^{2}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

Let

z----> the scale factor

x-----> the corresponding side of the larger figure

y-----> the corresponding side of the smaller figure

$z=\frac{x}{y}$

we have

$x=12\ cm$

$y=9\ cm$

substitute

$z=\frac{12}{9}=\frac{4}{3}$ -----> the scale factor

step 2

Find the area of the larger figure

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z----> the scale factor

x-----> the area of the larger figure

y-----> the area of the smaller figure

$z^{2}=\frac{x}{y}$

we have

$z=\frac{4}{3}$

$y=390\ cm^{2}$

substitute and solve for x

$(\frac{4}{3})^{2}=\frac{x}{390}$

$(\frac{16}{9})=\frac{x}{390}$

$x=390*16/9=693.33\ cm^{2}$

4 0

3 years ago

Simplify olo leaving your answer in index form.

Yuliya22 [10]

Answer:

i would have helped but i the question isnt there......

Step-by-step explanation:

8 0

3 years ago

Your bill for a cell phone plan is based on a $30 charge for service and a $15 charge for every gigabyte of data you use.

mote1985 [20]

Answer:

good morning Sir great day of school and again and 5555gv very nice to see you soon as a great day of school and again and again 5v

7 0

3 years ago

Find the value of x to the nearest degree. A. 35 B. 28 C. 51 D. 55

user100 [1]

Answer:

Step-by-step explanation:

First, we are already given the sides adjacent and opposite to ∠x. Therefore, we can use the tangent function. Recall that:

$\tan(x)=opp/adj$

The opposite side is 20 while the adjacent side is 14.

Plug in the numbers. Use a calculator:

$\tan(x)=20/14=10/7\\x=\tan^{-1}(10/7)\\x\approx55.0080\textdegree\approx55\textdegree$

Edits: Improved Answer. Removed Wrong Answer.

8 0

4 years ago

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Michelle's credit card has a 1% introductory APR for 12 months and after that a 19.9% APR for purchases. Michelle makes purchase

WARRIOR [948]

There is a lot of unnecessary information here made to trip you up.

1% of $150 is $1,50. If we add that to her purchase, we get $151.50

Provided she pays during the grace period, she should only have to pay $151.50

6 0

3 years ago

Read 2 more answers