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3 years ago

I need help please?!!!

Mathematics

1 answer:

nexus9112 [7]3 years ago

3 0

The y intercept is where the line passes throught the y axis, or when x=0 so therfor the line is parellel to the y axis,never crossing it.

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Seven times the difference of a number and 7.

Ymorist [56]

Answer:

7(n-7)

Step-by-step explanation:

it tells us that there is difference of a number and 7

a number=n

this will be (N-7)

this tells us that seven times the equation (N-7), so just multiple 7 by the equation (n-7)

7(n-7)

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3 years ago

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70 POINTS PLEASE HELP! A dump truck pours sand into a container in the shape of a rectangular prism with a square base of length

galina1969 [7]

Answer:

Step-by-step explanation:

The volume of a rectangular prism is:

$V=\ell wh$

Since the prism has a square base, each side length being 2, this means that both the length and width of our prism is 2. Therefore:

$V=(2)(2)h=4h$

So, we can write:

$V=4h$

The height h increases at a rate of about 8 inches or 8/12 = 2/3 feet per minute.

So, after t minutes, the height will be 2/3(t) feet. Thus, we can substitute:

$\displaystyle V=4\Big(\frac{2}{3}\Big)t=\frac{8}{3}t$

We want to find after how long it will be until the volume is 64 cubic feet. So, V = 64:

$\displaystyle 64 = \frac{8}{3} t$

Solve for t:

$\displaystyle t=\frac{3}{8}(64)=3(8)=24\text{ minutes}$

The correct answer is A.

3 0

3 years ago

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Please Help. It would be very helpful to me

Ahat [919]

Answer:

A) 2 inches

Step-by-step explanation:

6 0

3 years ago

Plzzzz help me but dont ansewer if you dont know it. 100 points

guapka [62]

The first one is 2x-3y/2
The second one is 1/x+2
The third one is (2x-5y)/(2x+5y)
The fourth one is x^2/z^2

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4 years ago

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Definition of mean, median, mode & range?

pickupchik [31]

Mean: Add all the numbers divide by the amount of values
Median: the middle number in a set of data
Mode: the most common number that appears in a set of data
Range: biggest number take away the smallest number

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3 years ago

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