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Akimi4 [234]
3 years ago
10

Help me please this is my last question

Mathematics
1 answer:
almond37 [142]3 years ago
7 0
Already answered the other question which was the same
8= 2 liters of punch
16= 4 liters of punch 
20= 5 liters of punch
28= 7 liters of punch
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A line passes through the points (-7, 3) and (5,-5) Which is the slope of the<br> line?<br> ASAP
Lady_Fox [76]

Answer:

slope is -2/3

Step-by-step explanation:

hope that helps!

4 0
3 years ago
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A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needs to be replaced. From past
Minchanka [31]
<h2><u>Answer with explanation</u>:</h2>

Let \mu be the distance traveled by deluxe tire .

As per given , we have

Null hypothesis : H_0 : \mu \geq50000

Alternative hypothesis : H_a : \mu

Since H_a is left-tailed and population standard deviation is known, thus we should perform left-tailed z-test.

Test statistic : z=\dfrac{\overlien{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

where, n= sample size

\overline{x}= sample mean

\mu= Population mean

s=sample standard deviation

For n= 31,\ \sigma=8000,\ \overline{x}=46,800\ \&\ s=46,800, we have

z=\dfrac{46800-50000}{\dfrac{8000}{\sqrt{31}}}=-2.23

By using z-value table,

P-value for left tailed test : P(z≤-2.23)=1-P(z<2.23)   [∵P(Z≤-z)=1-P(Z≤z)]

=1-0.9871=0.0129

 Decision : Since p value (0.0129) < significance level  (0.05), so we reject the null hypothesis .

[We reject the null hypothesis when p-value is less than the significance level .]

Conclusion : We do not have enough evidence at 0.05 significance level to support the claim that t its deluxe tire averages at least 50,000 miles before it needs to be replaced.

4 0
3 years ago
Please help me and explain to me!
Vadim26 [7]
I believe the answer is 19.2 because you would have to do paythag. = a^2+b^2=c2 in this case it would be 7^2 + 10^2 = c
From there you would get the answer of 149, and you would have to square root it. When you square root 149 you get 12.2
12.2 + 7 = 19.2
You would add them together because you want to know the height before it broke.
7 0
3 years ago
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A spinner with 8 equally sized slices has 8 yellow slices. The dial is spun and stops on a slice at random. What is the probabil
Ray Of Light [21]

Answer: 8/8

Step-by-step explanation:

It's eight yellow slices out of a total of eight slices. So it's impossible to get anything other than yellow.

3 0
2 years ago
A circle with radius 3 with a central angle of 17/9pi radians. What is the area of the sector?
inn [45]
It can maybe be um 3 times 17 55 um maybe 88
8 0
3 years ago
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