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3 years ago

13

Doing test corrections and still have no clue what to do

2 answers:

Mkey [24]3 years ago

7 0

Exterior angle = 180- Interior angle

Exterior angle = 180 - 168 = 12 degrees

So each exterior angle on the polygon is 12 degrees.

Now every polygon has a total of 360 degrees in exterior angles, so how many 12 degree angles fit into 360 degrees.

360/12 = 30 sides :)

nirvana33 [79]3 years ago

6 0

The answer would be 30 sides

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D = {x|x is a whole number} E = {x|x is a perfect square between 1 and 9} F = {x|x is an even number greater than or equal to 2

ser-zykov [4K]

<span>E = {x|x is a perfect square between 1 and 9} = {1,4
</span><span>F = {x|x is an even number greater than or equal to 2 and less than 9}
</span><span>D = {x|x is a whole number}
</span>
answer
D ∩ (E ∩ F) = 4

4 0

4 years ago

Given the vectors u = <5,-1> and v = <1,12>, find -7u-3v. *

zepelin [54]

You multiply vectors and scalar simply by multiplying each component by that scalar:

$-7u = \langle-35,7\rangle,\quad -3v=\langle -3,-36\rangle$

Finally, you sum two vectors by summing the correspondent coordinates:

$-7u-3v = \langle-35,7\rangle+\langle -3,-36\rangle = \langle-38,-29\rangle$

4 0

3 years ago

Hey! Could I get a lil bit of help? (10 points)

GrogVix [38]

Answer:

<em>Neither A nor B</em>

Step-by-step explanation:

Neither set of order pairs represent a function, because none of the points have a correlating function throughout them.

4 0

3 years ago

Read 2 more answers

Help please I attached a image

Lina20 [59]

Answer:

the answer is the square of 13

Step-by-step explanation:

a= 2 and b=3, square both and that equals 4 and 9. using pythagorean theorem 4+9=12=the distance between a and b :D

7 0

3 years ago

Please help like rn !!!!!!!!!!!!!!!

forsale [732]

Answer:

$455.84

Step-by-step explanation:

find area of the two halves of the circle and the rectangle

area of circle= $\pi r^{2}$

where r= 2 ft

therefore

$\pi (2)^{2}\\=12.56 ft^{2}$

area of rectangle= $w*l$

where w= 4ft and l= 5ft

therefore

$(4)(5) \\=20 ft^{2}$

add areas together

$12.566 + 20 \\=32.56 ft^{2}$

it costs $14 per square foot and there are 32.566 square feet, so multiply

$14 * 32.56 \\= $455.84$

3 0

3 years ago