3 years ago

2r^2+3s^3-r^2+4t^2-r^2 if r=-2, s=-3, and t=5

Mathematics

1 answer:

dimulka [17.4K]3 years ago

3 0

$2(-2)^2+3(-3)^3-(-2)^2+4(5)^2-(-2)^2 = 19$

19 is the answer.

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Alex787 [66]

I'm not entirely sure but it should be (3/5) together. For pen the probability is (5/20) and for crayon is (12/20) add them equals (12/20) simply equals (3/5) HOPE IT HELPS

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3 years ago

The entertainment committee voted to hire a DJ for the school dance. The DJ

nydimaria [60]

A 4 hours

This is because if you create the equation using $75 which is the starting fee and then $30 for every hour of playing music.

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3 years ago

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Marsha spends 150 minutes a night doing homework.

kodGreya [7K]

Answer:

70%

Step-by-step explanation:

Maths homework takes 1/6×150mins

=150/6=25 mins

science homework takes 20/100×150

=3000/100

=30mins

Language Arts homework uses 1/3×150

=150/3

=50 mins

percent of time left for Marsha's social studies homework=total time used / original time

=(25+30+50)mins

=105mins/150mins×100%

=0.7×100

=70%

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3 years ago

Jim gets a weekly allowance he keeps $8 for spending money saves $5 and gives $2 to charity how much is Jim's weekly allowance

olga55 [171]

Step-by-step explanation:

$15

He keeps 8. He saves 5 so 8+5=13

He also gives $2 to charity.

8+5+2= $15

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4 years ago

(6×1,000)+(1×100)+(2×10)+(9× 10 1 )+(4× 100 1 )=?

stiv31 [10]

Answer:

11033

Step-by-step explanation:

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2 years ago