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adell [148]
2 years ago
9

Somebody help me asap I’m giving brainliest!

Mathematics
1 answer:
sergejj [24]2 years ago
4 0

Answer:

C becausee I'm trying to help

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Combine like terms and note the degree<br> 8a^6bc-abc-8a^6bc
erik [133]

Answer:-abc

Step-by-step explanation:

To collect like terms of

8a^6bc-abc-8a^6bc

=8a^6bc-8a^6bc-abc

=-abc

7 0
3 years ago
A large software company gives job applicants a test of programming ability, and the mean for that test has been 160 in the past
Anastaziya [24]

Answer:

Since the computed value of t=  0.833 does not fall in the critical region we therefore do not reject H0 and may conclude that population mean is greater than 160. Or the sample comes from population with mean of 165.

Step-by-step explanation:

  1. State the null and alternative hypothesis as

H0: μ= 160 against the claim Ha :μ ≠160

Sample mean = x`=  165

Sample standard deviation= Sd= 12

2.  The test statistic to use is

t= x`-μ/sd/√n

which if H0 is true , has t distribution with n-1 = 36-1= 35 degrees of freedom

3. The critical region is t< t (0.025(35)= 2.0306

t= x`-μ/sd/√n

4. t = (165-160)/[12/√(36)] = 5/[6] = 0.833

5. Since the computed value of t=  0.833 does not fall in the critical region we therefore do not reject H0 and may conclude that population mean is greater than 160. Or the sample comes from population with mean of 165.

Now

6. The p-value is 0 .410326 for  t= 0.8333 with 35 degrees of freedom.

6 0
2 years ago
The table shows the time it takes Jenny to swim laps. How long will it take her to swim 14 laps?
Dahasolnce [82]
14 laps of swimming will take her 10 1/2 minutes.
4 0
3 years ago
Explain why multiplying two negative<br>numbers results in a positive product using a model.​
Mumz [18]

Answer:

ujsjejejswjjwwjwiwjwjwjajusususuwj873gy7uee

8 0
2 years ago
How do I solve this problem 3y-6+7y-4y
VashaNatasha [74]
Let's simplify step-by-step.
3y-6+7y-4y
=3y+ -6+7y+ -4
Combine Like Terms.
=3y+ -6 +7y+ -4y
=6y+ -6
Answer:
6y-6
6 0
3 years ago
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