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9966 [12]
3 years ago
10

Help ! not sure what do do

Mathematics
1 answer:
nirvana33 [79]3 years ago
4 0

Answer:

90 I think it has been a long time

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Scientific notation for 7×10^9​
Alex17521 [72]

Answer:

7,000,000,000

Step-by-step explanation:

7×10^9

The number after ten is how many zeros you put.

5 0
3 years ago
Read 2 more answers
Choose all of the equations that are equivalent to 8k = 20. 8k – 4 = 20 + 4 8k ÷ 4 = 20 ÷ 4 8k × 3 = 20 × 3 8k + 10 = 20 + 10 8k
Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

8 0
3 years ago
F(x)=3x2+2x−3 <br><br> g(x)=2x+4
Yakvenalex [24]

Answer:

A: 6

B: 16

C: 2

D: -12

Step-by-step explanation:

They are asking you to multiply the equations:

(3x^2 + 2x - 3)(2x + 4)

Distribute and you should get:

6x^3 + 16x^2 + 2x - 12

The Coefficients A,B,C, and D are 6, 16, 2, and -12.

3 0
3 years ago
it takes 21 minutes for 5 people to paint 7 walls. how many minutes does it take 3 people to paint 10 walls
tensa zangetsu [6.8K]
21/7=3mins per wall with 5 people.
Because we assume that all of the people paint at the same rate, 3 X 5=15 mins for one person working alone.
15/3=5 mins per wall with 3 people X 10 people= 50 mins for 3 people to paint 10 walls.


The answer is 50 mins.
8 0
3 years ago
If f(x) = x2 + 2x + 1 and g(x) = 3(x + 1)2, which is an
Ilia_Sergeevich [38]
The answer should be C
5 0
3 years ago
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