3 years ago

How many edges does this shape have?

Mathematics

1 answer:

Lemur [1.5K]3 years ago

4 0

Answer:8

Step-by-step explanation:

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Express the ratio 16:9 as a ratio to 1

Bumek [7]

I think it's 1.77777777778(7 is repeating) to1.
16/9=1.77..............8

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3 years ago

Factor completly 4x^2 +8x -5

DaniilM [7]

∑ Hey, jillianwagler ⊃

Answer:

$\left(2x-1\right)\left(2x+5\right)$

Step-by-step explanation:

║Given info║:

Factor completely: $4x^2 +8x -5$

Solution~:

Breaking the expression~: $\left(4x^2-2x\right)+\left(10x-5\right)$

Factor out 2x from 4x² -2x : 2x(2x-1)

Factor out 5 from 10x - 5 : 5(2x - 1)

Put together: $=2x\left(2x-1\right)+5\left(2x-1\right)$

Factor out 2x - 1: $=\left(2x-1\right)\left(2x+5\right)$

xcookiex12

8/19/2022

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2 years ago

Determine whether each set of numbers can be measure of the sides of a RIGHT triangle. Justify your answer.

Papessa [141]

Answer:

The side lengths cannot belong to a right triangle.

Step-by-step explanation:

This is a simple case of Pythagorean proof. If this triangle was a right triangle, 20^2 + 21^2 = 28^2. However, this is not the case. 20^2 + 21^2 = 841, which square root is 29.

If you forgot, the Pythagoren Theorem is: a^2 + b^2 = c^2.

Hope this helps!

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4 years ago

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Sholpan [36]

C is your answer....

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4 years ago

What is cos 75° to the nearest ten-thousandth?

KATRIN_1 [288]

The answer is 0.2588

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3 years ago