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Snowcat [4.5K]
2 years ago
5

-4x < 28does anyone know the solution and answer?​

Mathematics
1 answer:
ratelena [41]2 years ago
6 0

Answer:

x>−7

Explanation:

Let's solve your inequality step-by-step.

−4x<28

Step 1: Divide both sides by -4.

−4x/−4 < 28/−4

x>−7

Answer: x>−7

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-10n + 24 + 30n = -36<br> Solve this equation
vladimir1956 [14]

Step-by-step explanation:

- 10n + 24 + 30n =  - 36

Collect like terms and simplify

[tex] -10n+30n=-36-24 \\ 20n = -60 [/tex]

Divide both sides of the equation by 20

[tex] 20n/20 = -60/20 \\ n=-3 [/tex]

8 0
3 years ago
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The number of undergraduates at Johns Hopkins University is approximately 2000, while the number at Ohio State University is app
Likurg_2 [28]

The remaining part of Question:

4) what can we conclude about sampling variability in the sample proportion calculated in the sample at John Hopkins as compared to that calculated in the sample at Ohio State.

5) The number of undergraduates at Johns Hopkins is approximately 2000 while the number at Ohio State is approximately 40000, suppose instead that at both schools, a simple random sample of about 3% of the undergraduates Will be taken.

Answer:

4) The sample proportion from Johns Hopkins will have about the same sampling variability as that from Ohio State

5) The sample proportion from John Hopkins will have more sampling variability than that from Ohio State

Step-by-step explanation:

Note: The sampling variability in the sample proportion decreases with increase in the sample size.

4) since the sample size at both Johns Hopkins and Ohio State is the same (i.e. n = 50), the sample variability of the sample proportion will be the same for both cases.

5) 3% of the population are selected for the observation in both cases.

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At Ohio State, sample size, n = 3% * 40000

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Since sampling variability in the sample proportion decreases with increase in the sample size, the sampling variability in sample proportion will be higher at Johns Hopkins than at Ohio State.

5 0
3 years ago
If ∠a and ∠b are supplementary and m∠a = 37°45', then m∠b =
dlinn [17]

a + b = 180

37.45 + b = 180

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Answer:

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Answer:

9.9225 E 34.

E = exponent

= 9.9225 x 10^34

Step-by-step explanation:

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