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Cerrena [4.2K]
2 years ago
5

Please write down the regression model corresponding to these three effects that you considered in part a. What combination of f

actor levels produces the longest tool life
Mathematics
1 answer:
Goshia [24]2 years ago
4 0

Answer: Longest tool life is at A-, B+ and C+, for an average predicted life of 552.5. From examination of the cube plot, we see that the low level of cutting speed and the high level of cutting angle gives good results regardless of metal hardness.

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Can you help me<br>4(b–1)²–9​
Tamiku [17]

Answer:

(b-1)²-9​

= 4[(b - 1)(b - 1)] - 9

= 4[b² - b - b + 1] - 9

= 4(b² - 2b + 1) - 9

= 4b² - 8b + 4 - 9

= 4b² - 8b - 5

Hope this helps!

7 0
2 years ago
If a number ends in zero, then it is divisible by five
kramer

Answer:

Yes

Step-by-step explanation:

10,20,30,40,50 are all divisible by 5.

8 0
3 years ago
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Harvey has $390 in a savings account that earns 6% simple interest each year. How much interest will Harvey earn in 2 years, ass
Ganezh [65]

Answer:

Step-by-step explanation:is 6/10

6 0
3 years ago
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Solve for the value of x 3x - 9 + 12 - 6x = -18
Zinaida [17]

Answer:

x=7

Step-by-step explanation:

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now let’s put together the like terms

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now we divide -21 By -3

the result is

x=7

5 0
3 years ago
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If the volume of a triangular prism is 120 base l is is 6 and base h is is 5 what is the height
Studentka2010 [4]
The height would be 4 cubic centimeters. First, find the area of the prism's base, which is 6x5. This equals 30. Then, divide the volume by 30. 120/30=4 cubic centimeters. Hope this helped!
7 0
3 years ago
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