3 years ago

Help me with this I'm on a time limit

1 answer:

8 0

$3.15 because you multiply 4.50 by .30 because you change the percent into a decimal so you get 1.35.Now you subtract 4.50 and 1.35 because it is a discount.

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Find the exact value of sin 105 degrees

STALIN [3.7K]

Answer:

$\frac{\sqrt{6}+\sqrt{2}}{4}$

Step-by-step explanation:

I'm going to write 105 as a sum of numbers on the unit circle.

If I do that, I must use the sum identity for sine.

$\sin(105)=\sin(60+45)$

$\sin(60)\cos(45)+\sin(45)\cos(60)$

Plug in the values for sin(60),cos(45), sin(45),cos(60)

$\frac{\sqrt{3}}{2}\frac{\sqrt{2}}{2}+\frac{\sqrt{2}}{2}\frac{1}{2}$

$\frac{\sqrt{3}\sqrt{2}+\sqrt{2}}{4}$

$\frac{\sqrt{6}+\sqrt{2}}{4}$

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3 years ago

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What is 2,789 to the nearest ten

klemol [59]

Hey luv!
2,789 rounded to the nearest ten would be
2,789.0

:)

You just moved one decimal

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3 years ago

150 miles in 3 hours

uysha [10]

150 miles= in 3 hours
150 miles/3 hours
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3 years ago

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Sean made 3⁄4 pound of trail mix and put 3⁄8 pound in each bag. How many bags did Sean fill with trail mix?

ddd [48]

Answer:

It is 2 bags.

Step-by-step explanation:

You have to divide 3/4 and 3/8. The 3/4 goes first.

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3 years ago

Three friends each have some ribbon Carol has 42 inches of ribbon title has 2.5 feet of ribbon and Baxter has 1.5 yards of ribbo

jolli1 [7]

Title has 2.5 feet, 30inches,0.33 yards
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3 years ago