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Andreyy89
3 years ago
14

El resultado de 9x^2 + 81 = 0

Mathematics
1 answer:
wlad13 [49]3 years ago
7 0
Como no entiendo lo que es es eso ?
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A recent physical inventory at a department store reports a merchandise value of $875,435. The merchandise book value was $907,3
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Answer:

1.6% shrinkage

Step-by-step explanation:

907,340 - 875,435 = 31,905

31,905 / 1,988,345 = .0160  = 1.6%

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There are three numbers a ,b,c where a>b and b>c. Describe the positions of the numbers on a number line ????
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A is the greatest number and C is the least number.
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How do you find the square root of a number?
MariettaO [177]

Answer:

multiply a number  by a number

Step-by-step explanation:

such as 8 times 8=64

which means the square root of 64 is 8

3 times 3=9

so the square root of 9=3

Hope this  helps you

6 0
3 years ago
The length of a rectangle is 8 inches longer than the width. If the area is 295 square inches, find the
sladkih [1.3K]

Answer:

L=21.6in and w=13.6

Step-by-step explanation:

If the length is 8 inches longer than its width, we can write the width as "w" and the length as the width w+ 8

Area is (width)(Length) = (width)(width+8)

W

----------

| |

| |

| | L = w+8

| |

| |

-----------

A = (w+8)(w)

A = w2 + 8w = 295.

(Problem states that area is 295 sq in)

Need to solve this quadratic equation

w2 +8y - 295 = 0

Factor:

(w - 13.64) (w + 21.64) = 0

So

w - 13.64 = 0. or. w + 21.64= 0

Solve these and get

w = 13.64. or. w = -21.64

Only one that makes sense in real life is the poitive one.

So the dimensions are

Width = 13.64 inches

Length = 21.64 inches

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3 years ago
If the mean height of college males was 70" with a standard deviation of 3", approximately what percentage of college males woul
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