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3 years ago

Please help I don't know this

Mathematics

2 answers:

Phoenix [80]3 years ago

8 0

Answer: C

Step-by-step explanation: 2+2 which is 4

So here is the example for you:))

You have 2 apples and I gave you 2 more apples add all them together how many TOTAL apples you have now?

If 1 plus (+) 1 is 2(two) then 2 plus(+) 2 Is 4

Hope you get it have a good time :))

rosijanka [135]3 years ago

5 0

The answer you are looking for is C:4 ..

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Given the degree of measure of angle KJH is 66 degrees find the measure in radians

Mrrafil [7]

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Answer:

E) 0.366π

Step-by-step explanation:

There are π/180 radians in a degree.

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11/30 = 0.366... repeating, so would normally be rounded to 0.367

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3 years ago

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Answer:

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A ball is thrown in the air from a height of 3 m with an initial velocity of 12 m/s. To the nearest tenth of a second, how long

stepladder [879]

Answer: 1.4 seconds

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

The equation is: h(t) = at² + v₀t + h₀ where

a is the acceleration (in this case it is gravity)
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h₀ is the initial height

Given:

a = -9.81 (if it wasn't given in your textbook, you can look it up)
v₀ = 12
h₀ = 3

Since we are trying to find out when it lands on the ground, h(t) = 0

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Use the quadratic equation to find the x-intercepts

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$x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\\\\\\x=\dfrac{-(12)\pm \sqrt{(12)^2-4(-9.81)(3)}}{2(-9.81)}\\\\\\x=\dfrac{-12\pm 16.2}{-19.62}\\\\\\x=\dfrac{-12+ 16.2}{-19.62}=-0.2\qquad x=\dfrac{-12- 16.2}{-19.62}=\large\boxed{1.4}\\$

Note: Negative time (-0.2) is not valid

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3 years ago

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Akimi4 [234]

Answer:

264 cm^2.

Step-by-step explanation:

The area = 1/2 * height * sum of the parallel sides

= 1/2 * 12 * (28 + 16)

= 6 * 44

= 264 cm^2.

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3 years ago

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gogolik [260]

Answer:

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Step-by-step explanation:

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