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Hoochie [10]
3 years ago
14

Could someone help me step by step with this question?

Mathematics
1 answer:
a_sh-v [17]3 years ago
7 0
\frac{2}{3}(9+x)=-5(4-x)  \\ \\   3*\frac{2}{3}(9+x)=3*[-5(4-x)]  \\ \\ 2(9+x)=-15(4-x)  \\ \\ 18+2x=-60+15x  \\ \\ -13x=-78  \\ \\  \cfrac{-13x}{-13} = \cfrac{-78}{-13} \\ \\  x=6
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Marcos is flying a kite 35 feet above an oak tree. The angle of elevation to the top of the tree is 16 degrees and the angle of
Elza [17]

9514 1404 393

Answer:

  195 ft

Step-by-step explanation:

The relationship between the horizontal distance, angle, and vertical height is given by ...

  Tan = Opposite/Adjacent

Referring to the attached diagram, we have ...

  tan(16°) = BT/MB

  tan(25°) = BK/MB

Solving for BT and BK, we can describe their difference as ...

  BT = MB·tan(16°)

  BK = MB·tan(25°)

  BK -BT = 35 = MB(tan(25°) -tan(16°))

Dividing by the coefficient of MB gives ...

  MB = 35/(tan(25°) -tan(16°)) = 35/0.179562

  MB = 195 . . . feet

Marcos is standing 195 feet from the base of the tree.

3 0
3 years ago
Find the solutions to the equation below . Check all that apply . X^2-4=0
KatRina [158]

Answer:

there are 2 solutions in total

Step-by-step explanation:

x^2-4=0

x^2=4

x= ±2<em>i</em>

5 0
3 years ago
Read 2 more answers
Alguien que me diga el resultado de esto.<br>8 × 8 × 8 – 9 × 2 + 3 = ?​
arsen [322]

Answer:

497

Step-by-step explanation:

(8 x 8 x 8) -( 9 x 2) + 3

512 - 18 + 3      

Ahora que está simplificado, hay una ecuación más sencilla.

512 - 18 + 3

512 - 15 = 497

¡Espero que te ayude y que tengas un gran día!

8 0
3 years ago
Read 2 more answers
Find the point slope equation for the line that passes through the points (2,1) and (-2,5).
SVEN [57.7K]

Answer:

y-1=-x+2

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(5-1)/(-2-2)

m=4/-4

m=-1

y-y1=m(x-x1)

y-1=-1(x-2)

y-1=-x+2

7 0
3 years ago
Part A: Explain how to determine the value of the vertical translation, d, for the graph of g(x). (2 points)
Vinil7 [7]

Answer:

Part A: Up 9

Part B: Up 6

Step-by-step explanation:

Part A: The graph appears to be a cosine graph since it starts at a peak on the y-axis. Normally a cosine graph starts at (0,1). This graph begins at (0,10). It has been shifted up y a translation by 9.

Part B: Each trig equation has a basic structure f(x) = a sin (x+b) + k where:

  • a is the vertical stretch
  • b is the horizontal shift
  • k is the vertical shift

A vertical translation is a vertical shift and is represented by the value in k added outside of the function. In the equation f(x) = 2sin(θ + 120°) + 6, k = 6. The vertical translation is 6.

5 0
3 years ago
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