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3 years ago

15

The interior angle of the regular pentagon below measures 108, and the pentagon has rotational symmetry. Which of the following

is the measure of an interior angle after a 90 rotation around the point of symmetry?

1 answer:

zysi [14]3 years ago

4 0

Answer:

108

Step-by-step explanation:

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A standard six-sided die is rolled onto a table. The product of the visible numbers is 144. What is the number on the bottom sid

denis-greek [22]

<h3>Answer: 5</h3>

Explanation:

This is something you could do by trial and error.

The visible numbers are 1,2,3,4,6 which multiply to 144.

Another approach is to notice that 5 is not a factor of 144, so it must be the hidden value not part of the items multiplied.

Every other number 1,2,3,4,6 is a factor of 144.

1*144 = 144

2*72 = 144

3*48 = 144

4*36 = 144

6*24 = 144

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2 years ago

What is the measure of the secant DE?

ladessa [460]

Using the formula (AB +BC) *BC = (DE +CD) *CD

fill i n what is known:

(17 + 4) *4 = (DE +6) *6

21*4 = (DE +6)*6

84 = (DE+6)*6

84/6 = DE+6

14 = DE +6

DE = 14-6
DE = 8

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3 years ago

Factor completely <br><br>8y²+6y+1

mel-nik [20]

(2y +1)(4y + 1) is the factored form

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2 years ago

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Parallel lines "a" and "b" are cut by a transversal "c." What is "R" in the diagram below?

belka [17]

Answer:

I'm guessing it's 70°

Step-by-step explanation:

in the image above you can see I circled the 70°

the same angle is below it to the left. which means it's 70°

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I can't figure out number 7.

Levart [38]

It would take just over 6 minutes assuming it takes him 2. 6 minutes to wax a single square inch somehow.

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