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Nana76 [90]
2 years ago
7

Plz help me well mark brainliest!

Mathematics
1 answer:
aleksley [76]2 years ago
4 0
It’s -9 because when multiplied it’s about -9
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PLSSS ANSWER 50 points
erma4kov [3.2K]

Answer:

18

Step-by-step explanation:

90 % 5 = 18 so A would measure 90º

8 0
3 years ago
Read 2 more answers
26. Law of sines, please give a step by step explanation
Stels [109]

Answer:

  174.6 ft

Step-by-step explanation:

It can be helpful to draw a diagram of the triangle we're concerned with. (See attached.)

We know the angle at the end of the shadow inside the triangle is 52°-22° = 30°. We assume the tree is growing straight up out of the hillside, so its angle with the hill inside the triangle is 90°+22° = 112°. Then the remaining angle between the shadow and the tree at the top of the tree is ...

  180° -30° -112° = 38°

Now, we have the angle opposite the tree, and the angle opposite the known side length of the triangle (215 feet along the hill, AC in the diagram). This is enough information to usefully use the Law of Sines.

  c/sin(C) = a/sin(A)

  c = a(sin(C)/sin(A)) = (215 ft)(sin(30°)/sin(38°)) ≈ 174.6 ft

The height of the tree is about 174.6 feet.

5 0
3 years ago
Quadrilateral OPQR is inscribed inside a circle as shown below. What is the measure of angle Q? You must show all work and calcu
viktelen [127]
Hello,

Angles y and 3y+8 are supplementaries since the quadrilater is inscribed

y+3y+8=180
==>4y=172
==>y=43 (°)
8 0
3 years ago
Sushil was thinking of a number. Sushil divides by 7 then adds 7 to get an answer of 12. Form an equation
VikaD [51]

Answer:

The number is 35.

35 divided by 7 is 5, and 5 plus 7 is 12.

:)

3 0
2 years ago
Read 2 more answers
4. (4-7)2 -<br> 6.7 +20
LuckyWell [14K]

Answer: 7.3

Step-by-step explanation:

Do the parentheses first!

4-7= -3

Then, multiply -3 by 2

-3×2= -6

Next,

-6-6.7= -12.7

Then, add -12.7 to 20

-12.7+20=7.3

Your answer is 7.3

4 0
2 years ago
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