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melamori03 [73]
3 years ago
13

A^2+12a-7-3a^2-5a+8 what answer

Mathematics
2 answers:
Vitek1552 [10]3 years ago
6 0

Answer:

Step-by-step explanation:

a^2 + 12a - 7 - 3a^2 - 5a + 8

-2a^2 + 7a + 1

Sindrei [870]3 years ago
5 0
Ur answer is: -2a² + 7a + 1
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8 PTS.
Harman [31]

Answer:

The dependent variable:  the total cost

The independent variable: the amount of books


If the equation is  y = 8x + 200

y would be the dependent variable and x would be the independent variable


I hope this helps.

7 0
2 years ago
When will the ball hit the ground
Likurg_2 [28]

Sorry but you didnt add a picture nor description. If you can, please re-ask this question with the following:

Details to your question

A picture or drawing

Thanks - Madilyn.

5 0
3 years ago
Read 2 more answers
A computer can sort x objects in t seconds, as modeled by the function
r-ruslan [8.4K]

Answer:

  36 objects

Step-by-step explanation:

You want the value of x when t=9, so you're solving ...

  9 = 0.007x^2 +0.003x

  9 = 0.007(x^2 + 3/7x)

From here, we observe that an approximation is probably sufficient.

 9/0.007 = x(x +3/7) . . . . . the expression on the right is nearly x^2

  x ≈ 3/√.007 ≈ 35.9 ≈ 36

We can check:

  .007(36)(36 3/7) = 9.18

  .007(35)(35 3/7) = 8.68

To keep the computer busy for 9 seconds, it needs to sort 36 objects.

 

6 0
3 years ago
Sole m-2/12=1/6<br> a.4<br> b.1<br> c.0<br> d.2
riadik2000 [5.3K]
The answer would be A. 4
Here’s what I would do.
Multiply both sides by 12 so u can get m- 2 by itself.
m-2= 2
How’d I get the two? It comes from when I multiplied 12 on both sides. 12/6= 2
Now ur equation should be
m-2=2
Do the opposite and add two to both sides to get the variable by itself.
m=4

Hope this helps :)))
7 0
2 years ago
Ramonita measured the height of a tree to be 11 feet. One month later, she measured the tree to be 11.75 feet tall. Two months a
DedPeter [7]
Hi.

To formally answer your question:

D. y = 0.75<em>x</em> + 11

We can prove this by substituting <em>x</em> with 1 (the initial measurement)

y = 0.75(1) + 11 = 11.75

~
3 0
3 years ago
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