2 years ago

Please please please help!!!

Mathematics

1 answer:

dalvyx [7]2 years ago

7 0

9514 1404 393

Answer:

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

Area = 14pi*39 = 546pi in^2

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]

There is actully no different only the fromt number changes

6 0

3 years ago