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padilas [110]
3 years ago
11

Please help !! I would really appreciate it

Mathematics
1 answer:
Savatey [412]3 years ago
6 0

Answer:

Runner 1

Step-by-step explanation:

Runner 1's speed is the slope of the line = (20-0)/(2-0) = 10

Runner 2's speed is the slope of the line = 8.5 (the coefficient of t)

Runner 3's speed is slope = (36-18)/(4-2) = 9

The fastest pace, therefore is of runner 1, because 10>9 AND 10>8.5

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Calculate the value of angle A and C of ∆ ABC. Where b=1435cm, a= 782cm and B= 115.6°.​
Monica [59]

The Law of Sines says

\dfrac{\sin A}{a} = \dfrac{\sin B}{b} = \dfrac{\sin C}{c}

\sin A = \dfrac a b \sin B

A = \arcsin( \dfrac{782}{1435} \sin 115.6 ) = 29.44^\circ

We don't have to worry about the obtuse supplement because a triangle can only have one obtuse angle, and that's B.

C = 180 - 115.6 - 29.44 = 34.96^\circ

Answer: A=29.44°, C=34.96°

5 0
3 years ago
At the local college, a study found that students earned an average of 14 credit hours per semester. A sample of 138 students wa
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Answer:

1932 credit hours

Step-by-step explanation:

Create a proportion

credits             credits

----------     =      ----------

students          students

14      ?

---- = -----

1         138

14 times 138

1932 credit hours

6 0
3 years ago
I need help with no. 11 & 12. Pls show your work.
Hitman42 [59]
But you're already done....
5 0
3 years ago
Help show work btw I’ll give brainly
Juli2301 [7.4K]

Answer:

5 5/8

Step-by-step explanation:

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HELP PLSSSSSSS
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Answer:

<h2>II </h2>

Step-by-step explanation:

That's my answer hope it is correct

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3 years ago
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