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Agata [3.3K]
2 years ago
15

Please please please help!!!

Mathematics
1 answer:
dalvyx [7]2 years ago
7 0

9514 1404 393

Answer:

  2

Step-by-step explanation:

Fill in the argument value and look up the function value on the graph.

  (f\circ f)(-2) = f(f(-2)) = f(2) = \boxed{2}

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What is the value of x in the trangle? Enter your answer in the box. Round your final answer to the nearest hundredth.​
-Dominant- [34]

Use trigonometry.

cos(18°) = x/25

Multiply both sides by 25.

cos(18°)25 = x

23.7764129074 = x

We round off to the nearest hundredth. This means to round off to two decimal places.

Doing so, we get 23,78 cm = x.

4 0
3 years ago
PLEASE HELP!! what is the surface area of a cylinder with a radius of 7 and a height of 32? Note: Answer must not be fraction or
Anton [14]

Area = 2pi*r*h + 2pi*r^2
Area = 2pi*r(h + r)
 
radius of 7 in and a height of 32 in


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8 0
3 years ago
Please help me out I need it done ASAP
Scorpion4ik [409]
Your answer will be letter b
3 0
3 years ago
A helicopter is hovering 450 feet above the ground. The angle of elevation
SIZIF [17.4K]

Answer:

The distance of helicopter from the injured person is 542.82 feet  

Step-by-step explanation:

Given as :

The height of the hovering helicopter above the ground = h = 450 feet

The angle of elevation from injured person to helicopter = Ф = 56°

Or, Let the distance of of helicopter from person = x feet

Now, From Triangle

∵ Sin Ф = \dfrac{\textrm Perendicular}{\textrm Hypotenuse}

∴  Sin 56° = \dfrac{\textrm h}{\textrm x}

Or, 0.8290 = \dfrac{\textrm 450}{\textrm x}

Or , x = \dfrac{\textrm 450}{\textrm 0.8290}

I.e x = 542.82 feet

So, The distance from injured person to helicopter = 542.82 feet

Hence The distance of helicopter from the injured person is 542.82 feet  Answer

3 0
3 years ago
Explain the relationship between multipying and dividing by 10 100 1000 and moving the decimal
krek1111 [17]
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