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777dan777 [17]
3 years ago
6

Math Needs help Surface area

Mathematics
1 answer:
vladimir1956 [14]3 years ago
5 0

The answer is D.

Hope this helps!

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Each guest at casandras party had 3 turns to act out worlds during a game. They began with a list of 50 words. When they finishe
Veronika [31]

Answer:

16 fits but not evenly

Step-by-step explanation:

16 times 3 equals 48 and 17 times 3 equal is 51 so someone didnt go 3 times.

7 0
3 years ago
A rabbit runs 35 Miles per hour. Select the animals who run at a faster unit rate per hour than the rabbit. Mark all that apply
Sever21 [200]
Reindeer and ostrich
4 0
3 years ago
Simplify: 9^-3<br><br><br> Please help!
dalvyx [7]

Answer:

Fraction form:       1/729

Decimal form:      0.00137174...

Exponent form:   3^-6

7 0
3 years ago
The average systolic blood pressure was found to be 140 mm for people who have high responsibility jobs, specifically investment
defon

Answer:

t = -1.428

Step-by-step explanation:

Average blood pressure among people with high responsibility jobs = u = 140 mm

Number of people sampled for the study = n = 51

Average blood pressure of the sample = x = 139 mm

Standard deviation of the sample = s = 5 mm

The claim is that practicing yoga decreases the blood pressure. So we have to test that after practicing yoga, the average blood pressure will be lesser than 140. Based on this we can formulate the null and alternate hypothesis as:

Null Hypothesis: \mu \geq 140

Alternate Hypothesis: \mu < 140

Since population standard deviation is not known, we cannot use z-distribution for this test. We are given the value of sample standard deviation, so t-test will be used for this case.

Test statistic is calculated as:

t=\frac{x-u}{\frac{s}{\sqrt{n} } }

Using the values in this formula gives us:

t=\frac{139-140}{\frac{5}{\sqrt{51}}}\\\\ t=-1.428

Therefore, the value of test statistic is -1.428

4 0
3 years ago
The function g is defined by g(x) = x² +4.<br> Find g(5n)
jasenka [17]

Answer:

g(5n)=5n^2+4

Step-by-step explanation:

Substitute 5n for x

5n^2+4

You can't really do much with this so that is the answer

7 0
3 years ago
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