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Volgvan
4 years ago
8

What is 2(-a-8) + 7a​

Mathematics
2 answers:
Romashka [77]4 years ago
8 0

Answer:

5a-16

Step-by-step explanation:

ella [17]4 years ago
5 0

Answer:

a = 3.2

Step-by-step explanation:

2( -a - 8) + 7a = 0

-2a -16 + 7a = 0

5a - 16 = 0

5a = 16

a = 16/5

a = 3.2

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Which statement is true regarding the functions on the graph?
Kryger [21]

Answer:

this one is simple, you want to find what poits are on the line, so fibd what poits are on the line

8 0
3 years ago
Find the area of the circumference of a circle wit radius 9 cm
ValentinkaMS [17]

Answer:

area = πr^2

= 81 π

circumference = 2πr

= 18 π

hope it helps

5 0
3 years ago
Read 2 more answers
What is the lower quartile , median, and upper quartile of ...<br> 3 6 3 8 5 2
dimulka [17.4K]

First, order up the numbers into order:

2, 3, 3, 5, 6, 8

Next, cut off the ones on each side to get the median.

2, 3, 3, 5, 6, 8

2, 3, 3, 5, 6, 8

Now with this, add the two middle numbers and divide by 2 to find the avg. of them:

3+5 = 8

8/2 = <u><em>4 is the Median</em></u>

Next, split up the number list into the lower section and the higher section, now knowing the Median:

2, 3, 3 Lower

5, 6, 8 Higher

Then, find the Median of each of these sections.

2, 3, 3 <em><u>Lower Quartile is 3</u></em>

5, 6, 8 <em><u>Higher Quartile is 6</u></em>

Hope that helps.

3 0
3 years ago
Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz helpppppppppppppppp<br><br><br>-3 1/5 ÷2 1/5
Alla [95]

Answer:

−16×5 / 5×11

= -16/11

4 0
3 years ago
Suppose that the price per unit in dollars of a cell phone production is modeled by p=55−0.0125x, where x is in thousands of pho
Tresset [83]

Answer: At x = 2200 level of production, it will get maximum revenue.

Step-by-step explanation:

Since we have given that

p = 55-0.0125x

and Revenue function is given by

R=x.p\\\\R=x(55-0.0.125x)\\\\R(x)=55x-0.0125x^2

We will take the first derivative of it.

R'(x)=55-0.025x

Now,we will find the critical points :

55-0.025x=0\\\\0.025x=55\\\\x=\dfrac{55}{0.025}\\\\x=2200

and R''(x)=-0.025<0, so it will get maximum revenue.

Hence, At x = 2200 level of production, it will get maximum revenue.

4 0
3 years ago
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