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Hunter-Best [27]
3 years ago
7

What is the measure of the greatest angle of a triangle if the side lengths are 21m, 23m, and 25m

Mathematics
1 answer:
docker41 [41]3 years ago
8 0
CosA=(21^2+23^2-25^2)/2*21*23
cosA=345/966
A=cos^-1(345/966)
A=69.08

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Help Please! I know how to find a median, but I dont understand how to use variables. <3
Valentin [98]

in accending order

19, w, 36,55,72

so 19>w<36

therefore,

24 is the answer

8 0
3 years ago
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solve for b 1/4(b-8)=2. I hope you have time to answer this. Thank you so much for your time you guys make me so happy
Mademuasel [1]

Answer:

16

Step-by-step explanation:

1/4(b-8)=2

b-8=2/(1/4)

b-8=2(4/1)

b-8=8

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8 0
3 years ago
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A student is trying to solve the system of two equations given below: Equation P: y + z = 6 Equation Q: 8y + 7z = 1 Which of the
Sergeeva-Olga [200]
<span>P:      y + z = 6
Q:  8y + 7z = 1

A. This makes y = -8Y which will eliminate the "y"'s when the equations are added.


</span>
4 0
3 years ago
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Triangles are similar. Round answer to nearest tenth (step by step)
ozzi

Answer:

13.5

Step-by-step explanation:

Similar = alike but not the same

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7 0
3 years ago
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NEED HELP
lawyer [7]

Answer:

80, 40, 40

Step-by-step explanation:

The rule is if the number before the tens place is 5 or more round up and if it is 4 or less round down.

I like to look at it without the rule and what makes sense.

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4 0
2 years ago
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