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crimeas [40]
3 years ago
9

If a =3 and b= -1, what is the value of ab-b to the second power?

Mathematics
1 answer:
Scilla [17]3 years ago
5 0

Answer:    -16

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4(1-x)+2x=-3(x+1 solve for x
ipn [44]

Answer:

3x

Step-by-step explanation:

6 0
3 years ago
The h.w. grant corporation used regression analysis to predict the annual cost of indirect materials. the results were as​ follo
grin007 [14]
Indirect material cost: y
explained by units produced: x
Linear regression. Cost estimation equation: y=mx+b
Constant: b=$15,640
Standard error of y estimate=$3,600
r^2=0.7704
Number of observations: n=22
x coeffient: m=11.25
Standard error of x coefficient=2.19

m=11.25, b=15,640 → y=11.25x+15,640

Answer: The cost estimation equation is y=11.25x+15,640
4 0
3 years ago
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A phone company charges 50 cents per minute during the daytime and 10 cents per minute at night.
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Answer:

You could talk on the phone for 200 minutes at night, or 40 minutes during the day.

For every 5 minutes you reduced your night time talking, you could talk during the day for 1 minute.

Step-by-step explanation:

0.50d + 0.10n < $20

0.50d < $20 --> d < 40 minutes

0.10n < $20 --> n < 200 minutes

4 0
2 years ago
Write the following inequality in slope-intercept form. –12x – 2y ≥ –42 y ≥ –6x – 21 y ≤ –6x – 21 y ≤ –6x + 21 y ≥ –6x + 21
xxMikexx [17]

Answer:

y ≤ –6x + 21

Step-by-step explanation:

5 0
3 years ago
2/3 greater than or less than 1/5
UkoKoshka [18]
2/3 is greater. 1/5 is less.
4 0
3 years ago
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