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Evgesh-ka [11]
3 years ago
13

Sara says, "If you subtract 15 from my number and multiply the difference by -7, the result is -133. What is sara's number

Mathematics
1 answer:
Delvig [45]3 years ago
7 0

Answer:

39

Step-by-step explanation:

-133/-7=19+15=39

check:39-15=19

19x(-7)=-133

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Tasha went golfing. Tasha hit the ball 220 yards down the fairway and then 165 yards to the hole. What would have been the short
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Answer:

385 yards

Step-by-step explanation:

From the information provided we can only assume that the two hits that Tasha performed were in a straight line and in the same direction. Otherwise we would need to know the direction and/or angle of the shots. Assuming they were straight, the shortest minimum distance between the tee area and the hole would be calculated by adding the distance of the two shots.

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What's x ? find the indicated side of the right triangle
expeople1 [14]

-------------------------------------------------------------------------------------------------------------

Answer:  \textsf{x = 6}

-------------------------------------------------------------------------------------------------------------

Given:  \textsf{The image provided with 2 angles and one side}

Find:  \textsf{Solve for the unknown side of x}

Solution:  In order to determine the length of x we need to use some trigonometric functions.  Using Soh Cah Toa we can see that we can either use 30 degrees or 60 degrees.  We will stick to 60 and we can see that the opposite side is 3 and the hypotenuse is x meaning that we need to use sin.  Plug in the values and solve for the unknown.

<u>Plug in the values</u>

  • \textsf{sin(30) = }\frac{\textsf{opposite}}{\textsf{hypotenuse}}
  • \textsf{sin(30) = }\frac{\textsf{3}}{\textsf{x}}

<u>Multiply both sides by x</u>

  • \textsf{sin(30) * x = }\frac{\textsf{3}}{\textsf{x}}\textsf{ * x}
  • \textsf{sin(30) * x = 3}

<u>Divide both sides by sin(30)</u>

  • \textsf{sin(30) * x}*\frac{1}{\textsf{sin(30)}}\textsf{ = 3}}*\frac{1}{\textsf{sin(30)}}
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<u>Simplify</u>

  • \textsf{x = 3}}*\frac{1}{\textsf{0.5}}
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Therefore, the value of the unknown variable x is 6 units.

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