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3 years ago

A polygon has the following coordinates: A(-6,5), B(-1,5), C(5,3), D(-1,1), E(-6,1). Find the length of AE.

Mathematics

1 answer:

Wittaler [7]3 years ago

4 0

Answer:c

Step-by-step explanation:

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Read 2 more answers

Calculate the length b to two decimal places.

Andrej [43]

Answer:

B. 21.64

Step-by-step explanation:

We have been given a triangle and we are asked to find the length of AC (b).

We will use law of cosines to find the length of side AC.

$c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta$

Upon substituting our given values in the formula we will get,

$(AC)^{2}=15^{2}+12^{2}-2\times 15\times 12 \text{ cos}(106)$

$(AC)^{2}=225+144-360\text{ cos}(106)$

$(AC)^{2}=369-360(-0.275637355817)$

$(AC)^{2}=369+99.22944809412$

$(AC)^{2}=468.22944809412$

Upon taking square root of both sides of our equation we will be get,

$AC=\sqrt{468.22944809412}$

$AC=21.6386101238993629\approx 21.64$

Therefore, the length of b is 21.64 and option B is the correct choice.

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3 years ago

I need help please help me pu

Luba_88 [7]

Answer:

D: x=12

Step-by-step explanation:

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2 years ago

Find the point of intersection of each pair of lines using substitution

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Answer:

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Step-by-step explanation:

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