2 years ago

Please help I dont get it

Mathematics

1 answer:

Lisa [10]2 years ago

4 0

Answer:

382 in ^3

Step-by-step explanation:

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pentagon [3]

Answer:

i think it is a because it makes sense and also you wouldnt

Step-by-step explanation:

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2 years ago

What is the value in cents of 2 quarters 3 dimes and 4 nickles

Nuetrik [128]

Answer: 2 quarters = 50 cents, 3 dimes = 30 cents, 4 nickels =20 cents. 50+30+20=100 cents.

Step-by-step explanation:

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2 years ago

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The height if a pyramid is the perpendicular distance between the base and the top of the pyramid. Which is greater, the height

kvasek [131]

The slant would be greater than the height because it is the hypotenuse and it is always greater than the legs.

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3 years ago

If cos x=8/17, and 270° < x < 360°<br> what is cos(2x)?

svp [43]

Answer: $\bold{-\dfrac{161}{289}}$

<u>Step-by-step explanation:</u>

Given: cos x = $\dfrac{8}{17}$ , x is in Quadrant 4

Use Pythagorean Theorem to find sin x:

8² + y² = 17²

y² = 17² - 8²

y² = 289 - 64

y² = 225

y = 15

→ sin x = $-\dfrac{15}{17}$

Use the double angle formula to find cos (2x):

$cos (2x) = cos^2 x - sin^2 x\\\\.\qquad=\bigg(\dfrac{8}{17}\bigg)^2-\bigg(-\dfrac{15}{17}\bigg)^2\\\\\\.\qquad=\dfrac{64}{289}-\dfrac{225}{289}\\\\\\.\qquad=-\dfrac{161}{289}$

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3 years ago

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Choose the value for reflection to place triangle ABC on top of triangle DEF. How did the orange triangle move? The triangle fli

SCORPION-xisa [38]

Answer:

x = 3

Step-by-step explanation:

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2 years ago

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Please help I dont get it​

Please help I dont get it