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mina [271]
2 years ago
13

-7a + 2b - 3a - 3c what is it

Mathematics
1 answer:
EastWind [94]2 years ago
5 0

Answer:

-10a + 2b - 3c

Step-by-step explanation:

hope this helps :)

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The expression -5p + 20 factored is<br> factor out the coefficient of the variable
krek1111 [17]

Answer: -5(p-4)

Step-by-step explanation: The coefficient of a variable is the number multiplying it. To factor it, take the coefficient out and put it outside the parantheses. However, if you do that, make sure you take that coefficient out of all of your other terms!

6 0
3 years ago
For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 21 N acts on
Marat540 [252]

Answer:

21N:7m/s

? :10m/s

21x10=210

210÷7=30N

Your final answer is 30N

Step-by-step explanation:

This is called direct propotion

it involves close multiplication

4 0
2 years ago
Which square root is a rational number ? Square root 50, square root 70, square root 81, square root 96
Elis [28]

Answer:

square root of 81

Step-by-step explanation:

\sqrt{81}  = 9

so 9 is rational number.

the rest are irrational number

8 0
3 years ago
a city doubles its size every 64 years. if the population is currently 225,000 what will the population be in 128 years
ale4655 [162]

Answer:

450,000

Step-by-step explanation:

128/64:2

225,000 X 2: 450,000

4 0
3 years ago
Read 2 more answers
A scuba diver is swimming 15 feet below the water’s surface. The diver swims up slowly at 0.5 feet per second for 4 seconds; and
STatiana [176]
0.5 x 4 = 2 feet / 2 feet in 4 seconds
15 - 2 = 13
New depth: 13 feet

0.4 x 3 = 1.2 feet / 1.2 feet in 3 seconds
13 - 1.2 = 11.8
New depth: 11.8 feet

8 0
3 years ago
Read 2 more answers
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