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3 years ago

Evaluate ( r - s) 3 + r 2 if r=8 s=5

Mathematics

2 answers:

Alchen [17]3 years ago

7 0

The answer to this is 19

Charra [1.4K]3 years ago

4 0

The answer is 19 hope this helps!

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PLZ HELP LAST QUESTION

marshall27 [118]

The pictures confused me, can you explain them please?

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3 years ago

4688-3) -30X-5 CX-5)

pshichka [43]

Answer:

x = 13/3

Step-by-step explanation:

4(8x-3) - 30x = 5(x-5)

Distribute

32x - 12 - 30x = 5x -25

Combine like terms

2x -12 = 5x-25

Subtract 2x from each side

2x-12-2x = 5x-2x -25

-12 = 3x-25

Add 25 to each side

-12+25 = 3x-25+25

13 = 3x

Divide each side by 3

13/3 = x

4 0

3 years ago

Read 2 more answers

1 1/3 x 2 3/4 = <br> ANSWER ASAP AND BE RIGHT <br> EXPLAINNNN STEP BY STEP <br> TO BE BRAINLIEST

sladkih [1.3K]

Answer:

1/2

Step-by-step explanation:

7 0

2 years ago

I need help again, as quickly as possible.

mestny [16]

Answer:

${ \tt{ \frac{1}{x} + \frac{1}{3} < \frac{1}{5} }} \\ \\ { \tt{ \frac{1}{x} > - \frac{2}{15} }} \\ \\ { \tt{x > - \frac{15}{2} }} \\ \\ { \bf{ - \frac{15}{2} < x < 0 }}$

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2 years ago

2x + 12 = 1/3 (7/3x+4/3)

gladu [14]

Answer:

Step-by-step explanation:

2x + 12 = 1/3 (7/3x+4/3)

$2x+12=\frac{1}{3}*\frac{7x}{3}+\frac{1}{3}*\frac{4}{3}\\\\2x+12=\frac{7x}{9}+\frac{4}{9}\\\\2x-\frac{7x}{9}=\frac{4}{9}-12\\\\\frac{2x*9}{1*9}-\frac{7x}{9}=\frac{4}{9}-\frac{12*9}{1*9}\\\\\frac{18x}{9}-\frac{7x}{9}=\frac{4}{9}-\frac{108}{9}\\\\\frac{18x-7x}{9}=\frac{4-108}{9}\\\\\frac{11x}{9}=\frac{-104}{9}\\\\\\x=\frac{-104*9}{11*9}=\frac{-104}{11}=-9\frac{5}{11}$

8 0

3 years ago