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dlinn [17]
3 years ago
14

I need help to a can get an A

Mathematics
1 answer:
xeze [42]3 years ago
7 0

Answer:

See below:

Step-by-step explanation:

We can use the Pythagorean Theorum to find out the missing side because we have a 90 degree right angle and 2 sides already given to us.

The Pythagorean Theorem states that a^2 + b^2 = c^2

<em>a </em>in this case would be the shortest side,

<em>b </em>in this case would be the 2nd longest side,

<em>c </em>is the hypotenuse.

a^{2} + b^{2}= c^{2}   \\a^{2} + 15^{2} = 17^{2}

If we solve this, we get 8!

Cheers!

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damaskus [11]

Answer:

Pink

Step-by-step explanation:

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3 years ago
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On Saturday morning, Ahmed decided to take a bike ride from one end of the 15-mile bike trail to the other end of the bike trail
frosja888 [35]

The expression which relates the total time taken and the time taken for the trip is [15s + 15(s+2)] / s² + 2s and 2.32 hours respectively.

<em>Travel time = distance ÷ speed </em>

<u>Second half of the trip</u> :

  • <em>Speed = s mph</em>

  • <em>Distance covered = 15 miles</em>

<u>Time taken for second half of trip</u> :

Time taken = 15 / s

<u>First half of the trip</u> :

  • <em>Speed = s + 2 mph </em>

<u>Time taken for first half of trip :</u>

Time taken = 15 / (s+2)

<u>Total time taken :</u>

<em>First half + second half</em>

15/(s+2) + 15/s = [15s + 15(s+2)] / s² + 2s

B)

If s = 12

<em>Substitute s = 12 into the expression</em> :

[15(12) + 15(12+2)] / 12² + 2(12)

[180 + 210] / 144 + 24

390 / 168

= 2.32 hours

Therefore, the total time taken is 2.32 hours.

Learn more : brainly.com/question/18796573

3 0
3 years ago
Please help this is due soonnnnn
Makovka662 [10]

Answer:

5 \sqrt{14r}  - \sqrt{42r} / 28r

sorry I can't put a fraction but the "'/" is the line and 28r goes underneath

Explanation:

Download photomath and take a picture, it will explain it. It would take forever for me to type it out

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Anastasy [175]

Answer:

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Step-by-step explanation:

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cos(8 *pi/12) = cos(2pi/3) = cos(pi - pi/3) = - cos(pi/3)= 1/2, which is not 0

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8 0
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asambeis [7]

Answer:

this is

Step-by-step explanation:

number 9 hope it's right

5 0
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