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4 years ago

What is the absolute value of -7.8

Mathematics

1 answer:

borishaifa [10]4 years ago

3 0

Answer:

| -7.8. | = 7.8

Step-by-step explanation:

The symbol for absolute value is two straight lines surrounding the number or expression for which you wish to indicate absolute value.

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Solve for x. 9/4 x = 8 1/2 A) 3 1/8 B) 3 7/8 C) 19 7/9 D) 19 1/8

Wittaler [7]

Answer:

Step-by-step explanation:

Because

6 0

3 years ago

Find the answer to zero point 73 repeating times square root of 147 end square root and select the correct answer below. Also, i

liubo4ka [24]

Answer:

$\frac{511\,\,\sqrt{3} }{99}$ which is an irrational number

Step-by-step explanation:

Recall that the repeating decimal 0.7373737373... can be written in fraction form as: $\frac{73}{99}$

Now, let's write the number 147 which is inside the square root in factor form to find if it has some perfect square factors:

$147=7^2\,3$

Then, 7 will be able to go outside the root when we compute the final product requested:

$\frac{73}{99} \,*\,7\,\sqrt{3} =\frac{511\,\,\sqrt{3} }{99}$

This is an irrational number due to the fact that it is the product of a rational number (quotient between 511 and 99) times the irrational number $\sqrt{3}$

5 0

3 years ago

HELP PLS all the info you need is in the picture need to solve for x

Andrews [41]

Answer:

x=8

Step-by-step explanation:

x^2 - 48 = 2x

x^2 - 2x - 48=0

(x+6)(x-8)=0

x+6=0 x-8=0

x= - 6 x=8

can not be negative so the answer is x=8

8 0

3 years ago

Solve by Describing your steps -3x + 12x =36

gladu [14]

Answer:

x=4

Step-by-step explanation:

-3x + 12x =36

Combine like terms

(-3+12)x = 36

9x = 36

Divide each side by 9

9x/9 = 36/9

x = 4

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4 years ago

5. An app developer projects that he will earn

grin007 [14]

Answer:

D. y = 2.30x

Step-by-step explanation:

If he makes $230 for every hundred, that 2.30 a pop, so 2.30x for x apps.

7 0

3 years ago