2 years ago

A survey was conducted of 450 high school students asking which class they prefer, math or

Mathematics

2 answers:

Reptile [31]2 years ago

6 0

Answer:

Step-by-step explanation:

astra-53 [7]2 years ago

3 0

Answer:

A: 249

B: 0.553

Step-by-step explanation:

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Whitepunk [10]

Answer:

$16,640

Step-by-step explanation:

Tim's total annual wage expense is ...

($8.00 /h)(40 h/wk)(52 wk/yr) = $8×40×52 /yr = $16,640 per year

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3 years ago

True or false concave polygon has all interior angles describe any angles less than 180 Degrees degrees??

Ugo [173]

Answer:

true

Step-by-step explanation: In a concave polygon, each interior angle is less than 180°.

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2 years ago

Simplify square root of negative 48.

kvv77 [185]

We want to simplify √(-48).

Note that
i² = -1 by definition.
Therefore
$\sqrt{-48} = \sqrt{i^{2}.16.3} = \sqrt{i^{2}} \sqrt{16} \sqrt{3} =4i \sqrt{3}$

Answer: c. $4i \sqrt{3}$

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3 years ago

Verify the identity <br> cos ( x + pi/2) = -sin x

IgorLugansk [536]

Hello
cos ( x + pi/2) =cos(x)cos(pi/2)-sin(x) sin(pi/2)
= cos(x)×0-sin(x) ×1
cos ( x + pi/2) = - sin(x)

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3 years ago

Read 2 more answers

Please answer the question in the picture!

Rama09 [41]

The correct answer is the second one, I already answered it.

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3 years ago