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ivann1987 [24]
3 years ago
15

If it takes Mathew an hour to get to his friends house and 2 hours if he drives 25mph slower, how far away does Mathew’s friend

live?
Mathematics
1 answer:
Zinaida [17]3 years ago
8 0

50 mph

1*(S)=2*(S-25)=S=2S-50=0=S-50=S=50

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Dmitry_Shevchenko [17]
It should be 13 as well
Because the arc length of CDE and ABCD are both 90 degrees. They share 20 degrees from arc CD and they already both have 70 degrees. So if the arc length is equal, the corresponding chords should be equal too.
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How do you turn 21\28 in to 75 \100
Sonbull [250]
<span>75% * 28 =
(75 : 100) * 28 =
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4 0
3 years ago
Find two numbers whose sum is 1 and whose difference is 7.
Mrac [35]

68-61 =7

but 7-6 =1

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
PLEASE WILL GIVE 50 POINTS PLEASE ANSWER ​
leva [86]

Answer:

AB = 75

BC = 60

AC = 45

m∠A = 53°

m∠B = 37°

m∠C = 90°

Step-by-step explanation:

<u>Trigonometric ratios</u>

\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}

where:

  • \theta is the angle
  • O is the side opposite the angle
  • A is the side adjacent the angle
  • H is the hypotenuse (the side opposite the right angle)

Given:

\sf \tan(A)=\dfrac{60}{45}

Therefore:

  • side opposite angle A = BC = 60
  • side adjacent angle A = AC = 45

To find the length of AB (the hypotenuse), use Pythagoras’ Theorem:

a^2+b^2=c^2

(where a and b are the legs, and c is the hypotenuse, of a right triangle)

⇒ AC² + BC² = AB²

⇒ 45² + 60² = AB²

⇒ AB² = 5625

⇒ AB = √5625

⇒ AB = 75

To find m∠A:

\implies\sf \tan(A)=\dfrac{60}{45}

\implies\sf A=\tan^{-1}\left(\dfrac{60}{45}\right)

\implies\sf A=53^{\circ}\:(nearest\:degree)

m∠C = 90° (as it is a right angle)

The interior angles of a triangle sum to 180°

⇒ m∠A + m∠B + m∠C = 180°

⇒ 53° + m∠B + 90° = 180°

⇒ m∠B = 180° - 53° - 90°

⇒ m∠B = 37°

4 0
2 years ago
HELLPPPPP MEEEEEEEEEEE
katrin [286]

B = (-4, -3)

C = (0, -3)

D = (0, -2)

E = (-4, -2)

6 0
2 years ago
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