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vfiekz [6]
3 years ago
5

Kylie and Rhoda are solving the equation 4(x-8)=7(x-4). Kylie uses a first step that results in 4x-32=7x-28. Rhoda uses a first

step that results in 4x-8=7x-4. Identify which person was correct, and what that person did to arrive at their answer.
Mathematics
1 answer:
Tanya [424]3 years ago
4 0
Rhoda made it there first
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A square piece of paper 10 cm on a side is rolled to form the lateral surface area of a cylinder and then a top and bottom are a
Anika [276]

Answer:

The surface = pi*10cm2

Step-by-step explanation:

The area of any rectangle is Base *  Height,

We know that the square originally has 10cm High, when is rolled to form a cylinder, it's new shape has a bottom side that is equals to a circle.

The length of a circle is 2*pi*Radio= pi*Diameter.

Since the square has the same length in each side, we know that pi*Diameter= 10cm*pi

The surface (area) of the cylinder is= Base * Height= 10cm*10cm*pi

 

6 0
3 years ago
Find x.<br><br><br><br> Question 1 options:<br><br> 6<br><br><br> 3<br><br><br> 9<br><br><br> 12
fredd [130]
Maybe it’s 3 but it actually depends on the equation . . .
6 0
3 years ago
Simplify the expression:<br> -<br> 4t+<br> -<br> 7t+3–10t
Gekata [30.6K]

Answer:t+3

Step-by-step explanation:

4t+7t+3-10t

11t+3-10t

t+3

8 0
3 years ago
Which property or properties of arithmetic do you use when you calculate 3×70 by first calculating 3×7 = 21 and then putting a z
ANEK [815]
The property used is the Associative property

3 × 70 = 3(70) = 3 (7×10) = (3×7) ×10

The formula is

a × bc = a (bc) = a (b×c) = (a×b) ×c
3 0
3 years ago
Ive been at this for abt 30 min. help?
gregori [183]

Answer:

1+\frac{-63}{x^2-1}

Step-by-step explanation:

If you foil this equation you will get:

\frac{(x+8)(x-8)}{(x+1)(x-1)}

And by dividing it, you will get;

1+\frac{-63}{x^2-1}

That is your answer!

6 0
3 years ago
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