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kiruha [24]
3 years ago
14

Simplify: 7·(a+5)–30 =

Mathematics
1 answer:
postnew [5]3 years ago
7 0

Answer:

7a + 5

Step-by-step explanation:

Distribute using PEMDAS.


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Jin buys 4 balls of yarn for a total of $23.78 she pays with two $20 Bill's. What is her change?
bixtya [17]

16.22 because two twenty dollar Bill's equals 40 then subtract 23.78 which equals 16.22

6 0
3 years ago
Describe the domain of<br> y = 3(1/2)^x
irakobra [83]

Answer:

Step-by-step explanation:

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2 years ago
Find the value of 7 Y if 3 bracket Y - 1 bracket is equal 21​
lawyer [7]

Answer:

7y = 56

Step-by-step explanation:

3(y - 1) = 21

Divide 3 on both sides:

y - 1 = 7

Add 1 to both sides:

y = 8

Multiply by 7 on both sides:

7y = 56

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If you move point B along BC how does M
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Step-by-step explanation:

How does M what?

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Read 2 more answers
What is the equation in slope-intercept form of the linear function represented by the table?
umka2103 [35]

Answer:

y = -x + 9

Step-by-step explanation:

You are given (-5,14), (-2,11), (1,8), and (4,5).  Your first objective is to find the slope.

Slope is delta y divided by delta x - the amount of height the graph gains divided by the amount of horizontal length the graph gains.  Take any two points and plug it into this: \frac{y_{2}-y_{1} }{x_{2}-x_{1}}.

i.e. (-2,11) and (4,5): \frac{11-5}{-2-4} which is \frac{6}{-6}, or -1.  Thus, the slope is -1.

We now have y = -1(x) + b, or just y = -x + b.

Next, find the y-intercept.  Set the value of x to 0, as the y-intercept is found along the y-axis, which is at the horizontal center of the graph, 0.  We now know that the y-intercept is (0,y).  To find the y-value, plug one of the coordinate pairs of choice into x and y.

i.e. (-5,14): 14 = (-1)(-5) + b

14 = 5 + b

14 - 5 = 5 + b - 5

9 = b

So, the y-intercept is (0,9).

Finally, the equation is:

y = -x + 9

7 0
2 years ago
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