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3 years ago

12

A) If each interior angle measures 20, how many sides does the polygon have?

1 answer:

olchik [2.2K]3 years ago

4 0

A) I think part "A" should read "If each EXTERIOR angle..."
The number of sides is 18
B) Each interior angle = 160 degrees
C) 2,880 degrees

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The area of the base of a prism is 24 mm2. The perimeter of the base is 22 mm. The height of the prism is 5 mm.

DIA [1.3K]

The surface area = The area of the two bases + the area of the lateral surface

The area of 1 base = 24 mm², so the area of two is 48 mm².

The area of the lateral surface = the perimeter of the base × the height.
The perimeter = 22 mm. The height = 5 mm.
Thus the lateral surface area is 110 mm².

The total surface area is 110 + 48 = 158 mm².

3 0

3 years ago

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Circle the common factors of 20w and 40wz. Options are 10, 20w, 10xz, 5z, 2w, z, 9w, or w. Can you please explain how you guys g

Molodets [167]

10, 20w, 2w, and we are factors of 20w and 40wz

5 0

3 years ago

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Help please! look at image below

Softa [21]

Answer:

otf grandson c or b or a

Step-by-step explanation:

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3 years ago

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Which product is positive?

Natalija [7]

Option D:

$\left(-\frac{2}{5}\right)\left(-\frac{8}{9}\right)\left(\frac{1}{3}\right)\left(\frac{2}{7}\right)$ is positive product.

Solution:

<em>If the negative sign is in even number of times then the product is positive.</em>

<em>If the negative sign is in odd number of times then the product is negative.</em>

To find which product is positive:

Option A:

$$\left(\frac{2}{5}\right)\left(-\frac{8}{9}\right)\left(-\frac{1}{3}\right)\left(-\frac{2}{7}\right)$

Here, number of negative signs = 3

3 is an odd number.

So, the product is negative.

Option B:

$$\left(-\frac{2}{5}\right)\left(\frac{8}{9}\right)\left(-\frac{1}{3}\right)\left(-\frac{2}{7}\right)$

Here, number of negative signs = 3

3 is an odd number.

So, the product is negative.

Option C:

$$\left(\frac{2}{5}\right)\left(\frac{8}{9}\right)\left(\frac{1}{3}\right)\left(-\frac{2}{7}\right)$

Here, number of negative sign = 1

1 is an odd number.

So, the product is negative.

Option D:

$$\left(-\frac{2}{5}\right)\left(-\frac{8}{9}\right)\left(\frac{1}{3}\right)\left(\frac{2}{7}\right)$

Here, number of negative sign = 2

2 is an odd number.

So, the product is positive.

Hence option D is the correct answer.

$\left(-\frac{2}{5}\right)\left(-\frac{8}{9}\right)\left(\frac{1}{3}\right)\left(\frac{2}{7}\right)$ is positive product.

4 0

3 years ago

Help plz:))) I’ll mark u brainliest

Nana76 [90]

either 37, 17, 20 or 24, 26, 51

4 0

2 years ago

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