3 years ago

Help me with the answer please

Mathematics

1 answer:

Dvinal [7]3 years ago

7 0

Answer: your dumb

Step-by-step explanation:

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A water sprinkler has a range of 5 meters as shown. The jet of water from the sprinkler sweeps out at an angle of 85° as the noz

Gemiola [76]

Answer

18.5 m²

Explanation

The figure is a sector of angle 85° and of radius 5 m.

The area = θ/360 × π × r²

= 85/360 × 3.14 × 5²

= 18.5347

The answer to one decimal place is 18.5 m²

4 0

3 years ago

If you launch the cannonball from the ground instead (hi=0), what does that change in the original equation?

ikadub [295]

Answer:

the value of hi changes from 58 to 0:

h(t) = -4.9t^2 +19.8t

Step-by-step explanation:

If the initial height changes, then the term in the equation that represents that height will change. The initial height term is hi, so it changes from 58 to 0.

$h(t)=-4.9t^2+19.8t+0\\\\\boxed{h(t)=-4.9t^2+19.8t}$

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2 years ago

Prove the trigonometric identity! Please help!! 50 Points!

Rudiy27

Answer:

Step-by-step explanation:

For simplicity I will substitue $x$ for β.

$1-sin(2x)=(cosx-sinx)^2\\1-2sin(x)cos(x)=cos^2x-2sin(x)cos(x)+sin^2x\\1=cos^2(x)+sin^2(x)\\1=1$

In the first step I used the identity

$sin(2x)=2sin(x)cos(x)$

And I factored out $(cosx-sinx)^2$

Then it's just simple algebra to cancel till the 3rd step where we used another identity derived from the Pythagorean Theorem.

$cos^2(x)+sin^2(x)=1$

That's it!

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2 years ago

Find the domain and range of the exponential function h(x) = 125 x

NARA [144]

Domain is all real numbers.
Range is all real numbers geater than 0

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3 years ago

Each of the letters of the word COLORADO are written on a piece of paper and then put into a bag. A piece of paper is drawn at r

Ilia_Sergeevich [38]

0.375 is the answer because there are 3 0's in COLORADO and 8 letter's in total. The fraction part would be 3/8 and in decimals it is 0.375.

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3 years ago

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