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3 years ago

ANSWER PLSSS THANK YOUUUUU

Mathematics

2 answers:

Nina [5.8K]3 years ago

8 0

Answer:

As a fraction: 81/100 (cannot be simplified) Decimal: 0.81 and a percent 81%

Step-by-step explanation:

Count the blocks and convert (you can also use an array.) Hope this helps you!

puteri [66]3 years ago

8 0

Answer:

Fraction: 81/100

Decimal: 0.81

Percent: 81%

Step-by-step explanation:

The box is a 10x10 so it has 100 squares inside.

There are 81 squares shaded so the fraction would be 81/100

To get the decimal just divide 81 by one hundred so the decimal is .81

As a percent is would be 81%

Hope this helps ya!!

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The length of a rectangle is twice its width.Find its area if its perimeter is 7 1/2cm

sp2606 [1]

Let x equal the width
let 2x equal length

2x + 2x + x + x = 7.5
6x = 7.5
x = 1.25

width = 1.25
length = 2.5

(2.5)(1.25) = 3.125

3.125 = 3 1/8
area = 3 1/8

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3 years ago

The edge lengths are given in units. If the volume of the figure is 260 square units, what is the height of the prism?

user100 [1]

Answer:

5 units.

Step-by-step explanation:

$V=lbh$

$260=(13)(4)h$

$260=52h$

$h=260/52=5$

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4 years ago

What are the zeros of the function f(x) = x^2 + 2x- 8 / x^2 - 2x - 8

Veronika [31]

Answer:

x=-4 and x=2

Step-by-step explanation:

You are given the function

$f(x)=\dfrac{x^2+2x-8}{x^2-2x-8}$

The zeros of the function are those value of x, for which $f(x)=0$

First, find x for which function is undefined

$x^2-2x-8\neq0\\ \\x^2-4x+2x-8\neq 0\\ \\x(x-4)+2(x-4)\neq 0\\ \\(x-4)(x+2)\neq 0\\ \\x\neq 4\text{ and }x\neq -2$

Now find points at which f(x)=0:

$f(x)=0\Rightarrow x^2+2x-8=0\\ \\x^2+4x-2x-8=0\\ \\x(x+4)-2(x+4)=0\\ \\(x-2)(x+4)=0\\ \\x=2\text{ or }x=-4$

For both these values (x=-4 and x=2) function f(x) is defined, then x=-4 and x=2 are zeros of the function.

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3 years ago

Read 2 more answers

PLEASE HELP! WILL GIVE BRAINLIEST

laila [671]

Answer:

a) (4,-2) b) (77,77)

Step-by-step explanation:

Times the brackets out and then add them or take them away

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3 years ago

Money Neil has a total of twelve $5 and $10 bills in his wallet. He has 5 times as many $10 bills as $5 dollar bills. How many o

Vlada [557]

Answer:

He has 2 $5 bills and 10 $10 bills

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3 years ago