2 years ago

USA test prep please answer

Mathematics

1 answer:

sergij07 [2.7K]2 years ago

8 0

Answer:

Step-by-step explanation:

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(4x-5)^3 - (x^2 + 4x+1)(4x-3)=?

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Answer:

64x^3-241x^2+296x-125

Step-by-step explanation:

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How many more people voted for the most popular color than for the least popular color

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Answer:

Step-by-step explanation:

red is most popular with 33 votes. silver is least popular with 9 votes.

33 - 9

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2 years ago

The half-life of a certain radioactive material is 36 days. An initial amount of the material has a mass of 487kg. Write an expo

Lubov Fominskaja [6]

Answer:

442.302 kg

Step-by-step explanation:

amount = 487 (1/2)^(t/36) where t is the number of days.

if t = 5

amount = 487(.5)^(5/36)

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1 year ago

Center (-15,11) radius 2

kodGreya [7K]

Answer:

$(x+15)^2+(y-11)^2=4$

Step-by-step explanation:

<u><em>The question is</em></u>

How do you write an equation for a circle with center (-15,11) and radius 2?

we know that

The equation of a circle in center radius form is given by

$(x-h)^2+(y-k)^2=r^2$

where

(h,k) is the center of the circle

r is the radius of the circle

substitute the given vales

$(x+15)^2+(y-11)^2=2^2$

$(x+15)^2+(y-11)^2=4$

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2 years ago

Use this number line when answering questions.

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Answer:

If the darker, longer lines are going in units of one, then A is equal to -2.

Step-by-step explanation:

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