2 years ago

( BRAINLIEST AND THANKS! )

Mathematics

1 answer:

Kamila [148]2 years ago

3 0

Answer:

Step-by-step explanation:

X Y

--------

1 0.50

2 0.25

3 0.13

4 0.06

5 0.03

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3 pounds of apples cost $8.37 how much each pound

Nadya [2.5K]

Answer:

$2.79 per pound of apple.

Step-by-step explanation:

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$x = 2.79$

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2 years ago

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4 years ago

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3 years ago

Prove the trigonometric identity!<br><br> 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

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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.

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That's it!

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2 years ago

I am a product one of my factors is 9 the sum of my two factors is 13 what number am i

lesya692 [45]

If 1 of ur factors is 9...and the sum of ur factors is 13....then ur other factor is (13 - 9) = 4

so u have 2 factors, 9 and 4, and u r the product, then u r (9 * 4) = 36 <==

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3 years ago