4 years ago

What are the three Pythagorean identities?

1 answer:

4 0

$Pythagorean \ Identity : \\\\1) \\\\sin^2\alpha +cos^2\alpha =1\\\\2)\\\\tan^2\alpha +1=sec^2\alpha \\\\ 3)\\\\1+cot^2\alpha =csc^2\alpha$

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Simora [160]

Answer:

I also don't know the answer to this question

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3 years ago

Janet bought 2 1/2 yards of fabric. She used 3/4 of the fabric to make a pillow. How much of the fabric did she use?

Lorico [155]

She used 7/4 or 1 1/4 of the fabric

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4 years ago

Partition segment MR into a 2:1 ratio with point L. What are the coordinates of L?

lisabon 2012 [21]

Answer:

<em>The coordinates of L are (4,5)</em>

Step-by-step explanation:

<u>Partition</u>

Given the points M(-2,-3) R(7,9), we must find a point L(x,y) such that the distance from M to L is double the distance from L to R. This means:

$\overline{ML}=2.\overline{LR}$

We'll apply that relation on both axes separately:

$x_M-x=2(x-x_R)$

$-2-x=2(x-7)$

Operating:

$-2-x=2x-14$

Joining like terms:

$3x=12$

Solving:

$x= 12/3=4$

Now for the y-axis:

$y_M-y=2(y-y_R)$

$-3-y=2(y-9)$

Operating

$-3-y=2y-18$

Joining like terms:

$3y=15$

Solving

$y=15/3=5$

Thus the coordinates of L are (4,5)

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3 years ago

Davon had 3/4 of a bag of popcorn. His friends are half of his popcorn. What fraction of the whole bag of popcorn did Davon's fr

Nikolay [14]

His friends ate 1/2 of 3/4..." of " means multiply
1/2 * 3/4 = 3/8

so his friends ate 3/8 of the bag of popcorn

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3 years ago

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Costs for miles driven = $99.50 No of miles = $99.50 / $0.50 = 199 miles

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3 years ago

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