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Jobisdone [24]
4 years ago
8

chart for solving current of river is 2 mph it takes boat total of 3 hours to travel 8 miles up and 8 miles down river. What is

speed of boat in still water
Mathematics
1 answer:
Fiesta28 [93]4 years ago
5 0
I really need helppppp
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Find X<br> A. 11√3<br> B. 33<br> C. 44√2<br> D. 33√2
igor_vitrenko [27]

Answer:

  B.  33

Step-by-step explanation:

The side opposite the 45° angle has measure 11√6×sin(45°). The side opposite the 60° angle has measure tan(60°) times that, so we have ...

  x = 11√6×sin(45°)×tan(60°) = 11√6×(√2/2)×√3 = 11×(√6)²/2

  x = 33

_____

The mnemonic SOH CAH TOA can be a useful reminder of the definitions of the trig functions. It tells you ...

  Sin = Opposite/Hypotenuse

  Tan = Opposite/Adjacent

Using these relations, we can find the sides of interest:

  Opposite = Hypotenuse × Sin . . . . for the 45° triangle

  Opposite = Adjacent × Tan . . . . . . for the 60° triangle

where the side opposite the 45° angle is the side adjacent to the 60° angle.

5 0
3 years ago
A girl that is 4 feet tall is standing next to the empire State building in New York city. The girls shadow is 3.2 feet long. If
lesya692 [45]

Answer: 1163.2 feet

<u>Step-by-step explanation:</u>

Set up the proportion then cross multiply:

\frac{height(girl)}{height(building)} = \frac{shadow (girl)}{shadow(building)}

\frac{4}{1454} = \frac{shadow (3.2)}{x}

4(x) = 1454(3.2)

   x = \frac{1454(3.2)}{4}

   x = 1163.2

3 0
3 years ago
Select the shapes that are similar to shape A
Kryger [21]
There is no image to help with the question
8 0
4 years ago
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Samantha is riding a raft down a stream that is moving at a date of 65 feet per minute. How dar downstream does she travel in 5
Solnce55 [7]
I think you have to add the sides
3 0
4 years ago
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What is the solution to the inequality below?
anastassius [24]
B because a negative squared is always a positive and it has to be a negativ number less than -3 is less than 9 and if it is greater than 3 than it would make it untrue.

3 0
3 years ago
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