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3 years ago

Write the expression in terms of sine only sin 9x cos 9x

Mathematics

1 answer:

Usimov [2.4K]3 years ago

6 0

$\sin 2\alpha= 2\sin \alpha\cos\alpha\quad\Rightarrow\quad\sin 9x\cos 9x=\frac{1}{2}\sin 18x$

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Drag the tiles to the correct boxes to complete the pairs, not all tiles will be used.

Ann [662]

Answer:

I can't answer your question because I can't see what boxes your talking about

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2 years ago

For 1983 through 1989, the per capita consumption of chicken in the u.S. Increased at a rate that was approximately linear. In 1

Volgvan

We have been given that in 1983, the per capita consumption was 39.7 pounds, and in 1989 it was 47 pounds.

Let us assume t=0 corresponds to year 1980.

Hence, we can express the given information as ordered pairs as (3,39.7) and (9,47).

We can to find a linear function passing through these points. Let us first find slope of the linear function:

$m=\frac{y_{2}-y_{1} }{t_{2}-t_{1}} =\frac{47-39.7}{9-3} =\frac{7.3}{6} =\frac{73}{60}$

We can write the required linear function as:

$y-39.7=\frac{73}{60}(t-3)$

Upon simplifying this, we get:

$y=\frac{73}{60}t+\frac{721}{20}$

In order to find per capita consumption in 1995, we need to substitute t=15 in this function.

$y=\frac{73}{60}(15)+\frac{721}{20}=54.3$

Therefore, we would expect the per capita consumption of chicken in 1995 to be 54.3.

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3 years ago

An arcade manager wants to know how many of his 750 regular customers prefer to visit in the winter. Each of five staff members

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Answer:

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Step-by-step explanation:

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3 years ago

A baseball team won 20 games and lost 10 games. What percent of the games did the team win?

KengaRu [80]

They won 20/30, so 100 / 30 = 3.3, then times by 20 = 66.66.

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3 years ago

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Charlotte drove 304 miles in 8 hours. If she continued at the same rate, how long

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Answer:

Step-by-step explanation:

I divided 304 by 8 and got 38. So it would take 38 minutes for her to drive 190 (MIght not make sense but thats it)

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3 years ago