3 years ago

Without calculating, how do you know that the equation | 4x-7 | = -1 has no solution ?

1 answer:

4 0

Hello

By just looking at the question, you should know that if there an absolute value symbol (which are those two straight lines surrounding that equation), the answer will always be positive.

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7Br%7D%7B6%7D%20%3D%208" id="TexFormula1" title="\frac{r}{6} = 8" alt="\frac{r}{6} = 8

kirill115 [55]

The answer is 48, hope that helps

3 0

3 years ago

Read 2 more answers

Which expression has the same value as 4x – 3y?

coldgirl [10]

Answer:

4x+(-3y)

Step-by-step explanation:

$\\ \rm\longmapsto 4x+(-3y)$

(-)(-)=(+)
(+)(-)=(-)
(-)(+)=(-)
(+)(+)=(+)

$\\ \rm\longmapsto 4x-3y$

5 0

3 years ago

Ali’s dog weighs 8 times as much as her cat. Together, the two pets weigh 54 pounds. How much does Ali’s dog weigh?

baherus [9]

Ali's dog weighs 48 pounds.

5 0

3 years ago

Read 2 more answers

Find the values of a and b that make the quadrilateral a parallelogram.

Yuri [45]

Step-by-step explanation:

both halves of a diagonal must be equal.

so,

8b - 30 = 6b + 6

2b = 36

b = 18

and

9a - 13 = 5a + 5

4a = 18

a = 18/4 = 4.5

5 0

2 years ago

What is the slope function?

egoroff_w [7]

Answer:

y=mx+b

Step-by-step explanation:

6 0

3 years ago