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2 years ago

Please help 15 points each but beware if you use my points for no reason or don't answer all 3 boxes I'll report you

Mathematics

2 answers:

MatroZZZ [7]2 years ago

7 0

50 480 530 it’s right I got it right

nignag [31]2 years ago

5 0

The answer is 50, 480 and 530

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What is the multiplicative inverse of −9?

Romashka-Z-Leto [24]

Answer:

The answer to your question is: letter C

Step-by-step explanation:

Multiplicative inverse is a pair of numbers which product gives 1.

Then

x will be our number

-9x = 1

x = - 1/9

because

-9 x $\frac{-1}{9}$ = $\frac{9}{9}$ = 1

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3 years ago

Is it a true or false you receive a pay raise of 3% hold later by a pay cut of 3% after the two changes and pay your salary is u

Dimas [21]

False.

Lets say your original pay was $100

You get a 3% pay raise so that now makes your pay: 100 x 1.03 = $103

Now from 103 you get a 3% pay cut so after the pay cut your pay would be:

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3 years ago

The Jackson family needs to travel from

eimsori [14]

Answer:

the second choice. and its shorter by 17 miles

Step-by-step explanation:

5 0

3 years ago

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A piece of string is 120 centimeters long.

Alona [7]

Answer:

1.2m

Step-by-step explanation:

1 meter = 100 cm

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4 0

3 years ago

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Find the volume of the solid of revolution generated by revolving the region bounded by y = 2x^2, y = 0, and x = 2 about the x-a

Irina18 [472]

Answer:

$128 \pi/5 units^3$

Step-by-step explanation:

The volume of the solid revolution is expressed as;

$V = \int\limits^2_0 {\pi y^2} \, dx$

Given y = 2x²

y² = (2x²)²

y² = 4x⁴

Substitute into the formula

$V = \int\limits^2_0 {4\pi x^4} \, dx\\V =4\pi \int\limits^2_0 { x^4} \, dx\\V = 4 \pi [\frac{x^5}{5} ]\\$

Substituting the limits

$V = 4 \pi ([\frac{2^5}{5}] - [\frac{0^5}{5}])\\V = 4 \pi ([\frac{32}{5}] - 0)\\V = 128 \pi/5 units^3$

Hence the volume of the solid is $128 \pi/5 units^3$

5 0

3 years ago