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3 years ago

Convert 27.0 meter per second to kilometer per hour Note: i need this ASAP plzz

Mathematics

1 answer:

DedPeter [7]3 years ago

8 0

Answer:

97.2

Step-by-step explanation:

multiply the speed value by 3.6

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Delta makes 12-volt car batteries. These batteries are known to be normally

blondinia [14]

Answer:

The probability that Delta car batteries last between three and four years

P(36≤X≤48) = 0.5188

The percentage of that Delta car batteries last between three and four years

P(3≤X≤4) = 52%

Step-by-step explanation:

Step(i):-

Given that the sample size n =12 -volt car batteries

Let 'X' be a Random variable in a normal distribution

Given that mean of the normal distribution = 45 months

Given that the Standard deviation of the normal distribution = 8months

Step(ii):-

Let X₁ = 3 years = 12 × 3 = 36 months

$Z_{1} = \frac{x_{1} -mean}{S.D} = \frac{36-45}{8} = -1.125$

Let X₂ = 4 years = 12 × 4 = 48 months

$Z_{2} = \frac{x_{2} -mean}{S.D} = \frac{48-45}{8} = 0.375$

Step(iii):-

The probability that Delta car batteries last between three and four years

P(36≤X≤48) = P(-1.125≤Z≤0.375)

= P(Z≤0.375) - P(Z≤-1.125)

= 0.5 +A(0.375) - (0.5-A(1.125)

= 0.5 + 0.1480 - (0.5 -0.3708)

= 0.1480 + 0.3708

= 0.5188

Final answer:-

The probability that Delta car batteries last between three and four years

P(36≤X≤48) = 0.5188

The percentage of that Delta car batteries last between three and four years

P(3≤X≤4) = 52%

5 0

3 years ago

Harrison plays a game in which he uses a net to catch balls that are randomly launched from holes in the ground. The height of o

aleksandr82 [10.1K]

3 sishsusbsusbsusnsjsnsn

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3 years ago

Answer this question:What is the difference between 9 < x and 9 = x? Explain.

maw [93]

9 < x

this means that x is a larger number than 9

9 = x

this means that x is equal to 9

3 0

3 years ago

Identify as a direct variation, inverse variation or neither. The number of tons of coal burned by an old coal burning locomotiv

Lynna [10]

The answer for the question shown above is the first option, which is:
- Direct.

The explanation is shown below:
1. The problem says that The number of tons of coal varies as the number of hours.
2. Therefore, you can write the following equation:
number of tons:x
number of hours:y
x=ky
Where k is the constant of variation.
3. Therere the variation is direct.

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3 years ago

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Use the equation y=3x-8 to find y when x=8

Stels [109]

Answer: X = 8/3

Step-by-step explanation:

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3 years ago

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