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ludmilkaskok [199]
3 years ago
10

Jerry bought 4 DVDs for $25.20. What was the unit rate?

Mathematics
1 answer:
irakobra [83]3 years ago
6 0
To find the unit rate of this problem just take 25.2/4 which equals $6.3 per unit Enjoy!=)<u /><u />
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Which describes how to graph h(x)= -3 squared root x+8 by transforming the parent function?
storchak [24]
The parent function is f(x) = ∛x


When you change the sign to get g(x) = - ∛x you are reflecting the function over the x-axis (because you are changing the sign of all the images).

When you do g(x + 8) to get h(x) = - ∛ (x + 8) you are shifting the functions 8 units to the left.

Therefore, the answer is the fourth option: reflect the parent function over the x-axis and translate it 8 units to the left.


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3 years ago
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Quissssssss !!!!!!<br><br>(2^2)^3 + 5! - 3! ​
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Answer:

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Step-by-step explanation:

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Find the measure of angles X and Y, as well as the values of x and y:
kotegsom [21]

Answer:

Step-by-step explanation:

By the Isosceles Triangle Theorem, if 2 sides of a triangle are congruent to each other, than the angles opposite those sides are also congruent. We see by the markings on the triangle that WX and WY are congruent. That means that angle Y (which is across from WX) and angle X (which is across from WY) are the same measure. We can set them equal to each other  because of this:

6y - 2 = 4x + 20

But we have a problem because we have 2 unknowns.

Let's try this out: the Triangle Angle-Sum Theorem says that all the angles of a triangle have to add together to equal 180. That means that

52 + 6y - 2 + 4x + 20 = 180.

But we STILL have a problem with those 2 unknowns. BUT...

If angle X and angle Y are the same, then we don't need both 6y - 2 AND 4x + 20.  We only need 1 of those multiplied by 2 because they're the same measure. Changing things up a bit to reflect that:

52 + 2(4x + 20) = 180 and

52 + 8x + 40 = 180 and

8x = 88 so

x = 11.

That means that

4(11) + 20 = 64 which is the measure of both angles X and Y.

Let's check:

64 + 64 + 52 better equal 180. And it does, so we're good.

The value of x is found this way:

4x + 20 = 64 and

4x = 44 so

x = 11 which we already knew. Now for y:

6y - 2 = 64 and

6y = 66 and

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4 0
4 years ago
How to find the average rate of change for f(x)=2^x;[2,4]​
forsale [732]

Answer:

6

Step-by-step explanation:

The average rate of change over the interval [a,b] for a function f is \frac{f(b)-f(a)}{b-a}.

So the average rate of change for f(x)=2^x on [2,4] is:

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3 years ago
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GalinKa [24]

Answer:

Geometric

Step-by-step explanation:

starting point : 800

800 , 1600 , 3200

Good luck .

8 0
3 years ago
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