3 years ago

I need help on this plsssssssssssssssssssssssss

Mathematics

1 answer:

Savatey [412]3 years ago

4 0

Answer:

okay the answer is d.

Step-by-step explanation:

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The polyatomic ion with the formula HPO42- is called

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Answer:

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Step-by-step explanation:

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3 years ago

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Simplify to an expression of the form (a sin(θ)).<br> 2sin(/8)2cos(/8)

rjkz [21]

Answer:

Your expression equals $2 \sin(\frac{\pi}{4})$ assuming the problem was to simplify $2\sin(\frac{\pi}{8}) 2\cos(\frac{\pi}{8})$ to the form $a\sin(\theta)$ .

Step-by-step explanation:

$2\sin(\frac{\pi}{8}) 2\cos(\frac{\pi}{8})$

$2(2)\sin(\frac{\pi}{8})\cos(\frac{\pi}{8})$

Let's use the following identity: $2\sin(A)\cos(A)=\sin(2A)$

$2\sin(2 \cdot \frac{\pi}{8})$

$2 \sin(\frac{\pi}{4})$ which is comparable to the form $a\sin(\theta)$ .

$a=2$

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3 years ago

If the ratio of sugar to flour is 10:3 and you use 70 ounces of sugar how many ounces of flour would you need to use?

olga_2 [115]

10+3=13
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3 years ago

PLEASE HELP

Savatey [412]

Answer:

Step-by-step explanation:

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What is the value of tan(t/2) if cos(t) = 4/5 and t is in quadrant IV?

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Answer:

Step-by-step explanation:

-1/3

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