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forsale [732]
3 years ago
13

Can someone help please? Easy math for others but I just can’t understand! Pic included!

Mathematics
1 answer:
____ [38]3 years ago
4 0
<h3>Answer:  Choice A) -16, 0, 0, 144</h3>

================================================

Work Shown:

plug in x = 1

y = x^2 - 8x - 9

y = (1)^2 - 8(1) - 9

y = 1 - 8(1) - 9

y = 1 - 8 - 9

y = -16

So x = 1 pairs up with y = -16

We can stop here since choice A is the only one that has -16.

So choice A must be the answer.

For the sake of completeness, let's plug in the other x values.

---------------------

plug in x = -1

y = x^2 - 8x - 9

y = (-1)^2 - 8(-1) - 9

y = 1 - 8(-1) - 9

y = 1 + 8 - 9

y = 0

x = -1 pairs up with y = 0

---------------------

plug in x = 9

y = x^2 - 8x - 9

y = (9)^2 - 8(9) - 9

y = 81 - 8(9) - 9

y = 81 - 72 - 9

y = 0

x = 9 pairs up with y = 0

---------------------

plug in x = -9

y = x^2 - 8x - 9

y = (-9)^2 - 8(-9) - 9

y = 81 - 8(-9) - 9

y = 81 + 72 - 9

y = 144

x = -9 pairs up with y = 144

---------------------

When you plug in x = 1, -1, 9 and -9, then the y values are y = -16, 0, 0 and 144 in that exact order.

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5 0
3 years ago
Is 0.529 greater than 0.54
attashe74 [19]
No. 0.54 is equal to 0.540

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3 years ago
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Help please!posted picture of question
Evgen [1.6K]
The region is in the first quadrant, and the axis are continuous lines, then x>=0 and y>=0
The region from x=0 to x=1 is below a dashed line that goes through the points:
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We can find the equation of this line using the point-slope equation:
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The region is below this line, and the line is dashed, then the region from x=0 to x=1 is:
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The region from x=2 to x=4 is below the line that goes through the points:
P2=(1,3)=(x2,y2)→x2=1, y2=3
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We can find the equation of this line using the point-slope equation:
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8 0
3 years ago
39÷(2+1)-2×(4+1)<br><br>PLEASE HELP​
Elza [17]

Answer:

3

Step-by-step explanation:

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= 39 ÷ 3 - 2 × 5

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5 0
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nalin [4]

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