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Rzqust [24]
3 years ago
7

Why does the vertical line test tell us whether the graph of a relation represents a function?

Mathematics
1 answer:
NeX [460]3 years ago
8 0
If the line is straight.
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The Distributive Property.Find each product mentally.show the steps you used:3×78​
alina1380 [7]

Answer:3*78=234

Step-by-step explanation:

8 0
3 years ago
The owner of a construction company would like to know if his current work teams can build room additions quicker than the time
frez [133]

Answer:

The claim that the current work teams can build room additions quicker than the time allotted for by the contract has strong statistical evidence.

Step-by-step explanation:

We have to test the hypothesis to prove the claim that the work team can build room additions quicker than the time allotted for by the contract.

The null hypothesis is that the real time used is equal to the contract time. The alternative hypothesis is that the real time is less thant the allotted for by the contract.

H_0: \mu=0\\\\H_1: \mu

The significance level, as a storng evidence is needed, is α=0.01.

The estimated standard deviation is:

s_M=\frac{s}{\sqrt{n}}=\frac{0.2}{\sqrt{16}} =0.2/4=0.05

As the standard deviation is estimated, we use the t-statistic with (n-1)=15 degrees of freedom.

For a significance level of 0.01, right-tailed test, the critical value of t is t=2.603.

Then, we calculate the t-value for this sample:

t=\frac{x-\mu}{s_M} =\frac{-0.32-0}{0.05}= -6.4

As the t-statistic lies in the rejection region, the null hypothesis is rejected. The claim that the current work teams can build room additions quicker than the time allotted for by the contract has strong statistical evidence.

8 0
3 years ago
Which of the following equations can be used to solve for x? select all that apply
kenny6666 [7]

Answer:

Everything but B

Step-by-step explanation:

When solving you can not have the degrees on the top

6 0
2 years ago
Find the next four terms of the sequence 125, 25, 5, 1,
Lina20 [59]
I think the answer is D sorry if I’m wrong
6 0
2 years ago
Read 2 more answers
I
zepelin [54]

Answer: $27,279

Step-by-step explanation:

The data is:

Clarissa earned $2,247 per month, in the first 7 months.

After that, she earned $2,310 per month.

What total gross pay did Clarissa  earned in one year?

Ok, a year has 12 months, in the first 7 months she earned $2,247 per month, so 7 times $2,247, this is:

7*$2,247 = $15,729

And in the other 12 - 7 = 5 months, she earned $2,310 per month, so 5 times $2,310.

5*$2,310 = $11,550

Adding those togheter:

Total gross = $15,729 + $11,550  = $27,279

6 0
2 years ago
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