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dangina [55]
2 years ago
15

Ill mark brainlist plss help

Mathematics
2 answers:
Paladinen [302]2 years ago
8 0

Answer:

I believe the answer would be 200 km.

Step-by-step explanation:

The distances listed for A, B, C leave barely enough distance between one house to another. The only reasonable option would be kilometers in this instance. This question was also answered already, and the ones with the highest reviews had chosen D) 200 km. Good Luck!

Crazy boy [7]2 years ago
4 0

Answer:  200km

Step-by-step explanation:

200 mm and 200cm are too small.

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Step-by-step explanation:

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nirvana33 [79]

Answer:

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Step-by-step explanation:

6 0
2 years ago
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A car gets 40 km per gallon of gasoline. How many gallons of gasoline would the car need to travel 1240 km
klasskru [66]
Do 1,240 divided by 40

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6 0
2 years ago
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Consider the hypothesis test below.
Pavel [41]

Answer:

Z_{H0} =1.79

p-value: 0.0367

Decision: Reject H₀

Step-by-step explanation:

Hello!

Hypothesis to test:

H₀:ρ₁-ρ₂=0

H₁:ρ₁-ρ₂>0

The statistic to use to test the difference between two population proportions is the approximation of Z

Z=<u>     (^ρ₁-^ρ₂)-(ρ₁-ρ₂)     </u>   ≈N(0;1)

   √ (<u>^ρ₁(1-^ρ₁))/n₁)+(^ρ₂(1-^ρ₂)/n₂))</u>

                   

Z=<u>                    (0.28-0.15)-0                    </u>= 1.79

   √ (<u>0.28(1-0.28)/200)+(0.15(1-0.15)/300)</u>

p-value

Remember: The p-value is defined as the probability corresponding to the calculated statistic if possible under the null hypothesis (i.e. the probability of obtaining a value as extreme as the value of the statistic under the null hypothesis).

P(Z>1.79)= 0.0367

Conclusion:

Comparing the p-value against the significance level, you can decide to reject the null hypothesis.

I hope you have a SUPER day!

8 0
3 years ago
ben earned 45 dollars mowing lawns. he worked 3.2 hours on monday and 4.3 hours on tuesday. how much did he earn per hour?
dlinn [17]

Answer:

6 dollars per hour

Step-by-step explanation:

We can set up and solve an equation to answer this question. For this problem, let x stand for the amount he earned per hour. The equation that represents this situation is 3.2x + 4.3x = 45. The first term represents monday and the second represents tuesday. When these add up they should equal 45 because that is the total amount he made. To find his pay per hour, solve for x.

First, combine the like terms

  • 7.5x=45

Next, divide both sides by 7.5

  • x=6
3 0
2 years ago
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