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3 years ago

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Alec has 2 comic books. Shereen has c times as many comic books as Alec. Write an expression that shows how many comic books She

reen has.
Type an asterisk ( * ) if you want to use a multiplication sign and a slash ( / ) if you want to use a division sign.

1 answer:

maks197457 [2]3 years ago

7 0

The expression is 2*c=b

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I'm not very good with square roots. Can someone please explain it to me and help me understand how to do them?

Mice21 [21]

A square root is Is a number times it's self. Like 2 is the square root of 4, because 2*2=4. 3 is the square root of 9, because 3*3=9....... And 7 is the square root of 49, because 7*7=49.

4 0

3 years ago

Express this in scientific notation 13,040,000

castortr0y [4]

First, to rewrite something in scientific notation, we want to move the decimal point a number of times to the right or left to end with a number between 0 and 10. In this case, we want to move the decimal point 7 times to the left to get the number 1.304. In scientific notation, this would be the same as 1.304*10^7.

I hope this helps!

3 0

3 years ago

Determine the formula, in terms of x, that best describes the area of the plot.

liq [111]

The area of a plot is the amount of space on the plot

The area of the plot is 2x^2 -x - 1

<h3>How to determine the area</h3>

The dimensions of the plot are given as:

Length=2x+1

Width=x-1.

The area of the plot is the product of its dimension.

So, we have:

$Area = (2x + 1)(x - 1)$

Expand

$Area = 2x^2 - 2x + x - 1$

Evaluate the like terms

$Area = 2x^2 -x - 1$

Hence, the area of the plot is 2x^2 -x - 1

Read more about areas at:

brainly.com/question/24487155

4 0

2 years ago

The sale price of an item is 0.75 the original price of the item, x. Which statement explains why both 34x and 0.75x can find th

defon

Answer:

B

Step-by-step explanation:

34x and 0.75x are not the same expression.

8 0

3 years ago

Read 2 more answers

What is the surface area of a cylinder that is 5 centimeters high and has a diameter of 1.5 centimeters?

olchik [2.2K]

The surface area of cylinder is 8.625 $\pi$ $cm^{2}$ , if the cylinder has 5 centimeters high and 1.5 cm of diameter.

Step-by-step explanation:

The given is,

Cylinder has a 5 centimeters height

Diameter of the cylinder is 1.5 centimeters

Step:1

Formula for the surface area of cylinder is,

$A=2\pi r h + 2\pi r^{2}$ ......................................(1)

Where,

h - Height of cylinder

r - Radius of cylinder

From the values of h and r,

$r=\frac{d}{2}$

= $\frac{1.5}{2}$

r = 0.75 cm

From the formula,

= ( 2 × $\pi$ × 0.75 × 5 ) + ( 2 × $\pi$ × $0.75^{2}$ )

= ( 7.5 $\pi$ ) + ( 1.125 $\pi$ )

A = 8.625 $\pi$ $cm^{2}$

Result:

The surface area of cylinder is 8.625 $\pi$ $cm^{2}$ , if the cylinder has 5 centimeters high and 1.5 cm of diameter.

3 0

3 years ago