2 years ago

The diagonal length of a rectangle is 21 inches, and the length of the rectangle is 8 inches.

Mathematics

2 answers:

Elodia [21]2 years ago

7 0

29 inches.

_________________

CaHeK987 [17]2 years ago

3 0

29 inches should be the answer

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20a+12a-8 simplified

bixtya [17]

That would 32a - 8, Good Luck!

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3 years ago

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Find what x is? 5×3>4+8+x a good help for your brain!

MaRussiya [10]

Answer:

x = 2.25 or any number greater

Step-by-step explanation:

5x3 > 4 + 8 + x

Make them equal to each other to get x

5x3 = 4 + 8 + x

(5x)(3) = 12 + x

- x - 3 - 3 - x

4x = 9

$\frac{4x}{4} = \frac{9}{4}$

x = 2.25

Once you get x plug it in to get the truth of the expression

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3 years ago

For what values of K does x2+kx+9=0

Airida [17]

Answer:

$k = 6$

Step-by-step explanation:

$x {}^{2} + kx + 9 = 0$

here,

a = 1,

b = k

c = 9

now,

$D = b {}^{2} - 4ac$

$k {}^{2} - 4(1)(9) = 0 \\ k {}^{2} - 36 = 0 \\ k {}^{2} = 36 \\ k = 6$

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2 years ago

What is the relationship between the continental drift hypothesis and the theory of

Pepsi [2]

Answer:

Plate tectonics explains why Earth's continents are moving; the theory of continental drift did not provide an explanation. Therefore, the theory of plate tectonics is more complete. It has gained widespread acceptance among scientists.

Step-by-step explanation:

Do some research on it.

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2 years ago

The cost to mail a package is $7 for the first 2 pounds and 30 cents for each additional ounce. Which of the following functions

SOVA2 [1]

A. f(x) = 7 + 0.3x

Just re-read your question! Hope I helped!

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3 years ago