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Lerok [7]
2 years ago
11

I NEED HELP ASAP!!!!!!!!!!

Mathematics
1 answer:
svetoff [14.1K]2 years ago
5 0

Answer:

I know the answer

Step-by-step explanation:

x = random number then y = x + y then x = 68 So we can conclude

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Please help thanks!!!
Alex73 [517]

Answer:

a^{2}

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
) In 2005, the Health Department in Marion County, Indiana measured the heights and weights of 90,147 school-age children, allow
Lena [83]

Answer:

Since the calculated z=40  falls in the critical region this indicates that the true obesity rate for children in Marion County is different from the national average at the 0.05 significance level. We reject the null hypothesis that population proportion is 0.17.

Step-by-step explanation:

The national average is 17% .The z proportional hypothesis test is used.

1) Let the null and alternate hypothesis be

H0: p =0.17

against the claim

Ha: p ≠ 0.17

Choose the significance level ∝= 0.05

The critical region is z > 1.96  and Z <- 1.96 because  it is two tailed test.

Computing

z= p^-p / sqrt [pq/n]

Z= 0.22-0.17/ √0.17*(1- 0.17)/90147

z= 39.965

Since the calculated z=40  falls in the critical region this indicates that the true obesity rate for children in Marion County is different from the national average at the 0.05 significance level. We reject the null hypothesis that population proportion is 0.17.

3 0
3 years ago
What is 195 squared to the nearest integer
densk [106]
The square root of 195 is 13. 195 squared (195×195) is 38,025. I do not know which way you needed it but I put both situations just in case.
3 0
3 years ago
Read 2 more answers
Charles has 24 marbles. He has 6 more marbles than blue marbles. Which equation represents this situation.
statuscvo [17]

Answer:

n + (n + 6) = 24.

Step-by-step explanation:

Let him have n  blue marbles, then he has n + 6 other narbles.

He has a total of 24 marbles, so:

n + (n + 6) = 24.

8 0
2 years ago
Read 2 more answers
Kyla ran 4 laps around a track in 168.4 seconds. If she ran each lap in the same amount of time, how many seconds did it take Ky
ArbitrLikvidat [17]
168.4 / 4 = 42.1 seconds per lap
5 0
3 years ago
Read 2 more answers
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