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olga2289 [7]
3 years ago
11

Convert 4 miles to feet A. 21,120 B. 21,000 C. 22,000 D. 20,210

Mathematics
2 answers:
Rina8888 [55]3 years ago
8 0

Answer: A. 21,120

Step-by-step explanation: Good luck! :D

ElenaW [278]3 years ago
7 0
The correct answer is A
A. 21,120
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What is the volume of 10 2 in 5.5in
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Step-by-step explanation:

The volume of a rectangular prism is the product of its dimensions:

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2 years ago
Write 42/100 in standard form as a decimal
iragen [17]

Answer:

0.42

Step-by-step explanation:

divide 100÷42 then the answer is 0.42

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3 years ago
Are you smarter than a second grader? A random sample of 60 second graders in a certain school district are given a standardized
denis23 [38]

Answer:

We accept H₀ , we do not have enought evidence for rejecting H₀

Step-by-step explanation:

Normal Distribution

sample size   n  =   60

standard deviation     σ  =  15

1.Hypothesis Test : Is a one tailed-test on the right

H₀      null hypothesis             μ₀  = 50

Hₐ    alternative hypothesis   μ₀  > 50

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then z(c)  =  2.32

3.- We compute z(s)  

z(s)  =  [ ( μ - μ₀ ) /( σ/√n )       ⇒  z(s)  =  (  2 * √60 ) / 15

z(s)  = 15.49/15                        ⇒   z(s)  = 1.033

4.- We compare values of  z(c)   and z(s)

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z(s) is in the acceptance region so we accept H₀ , we do not have enough evidence for rejecting H₀

6 0
3 years ago
A train travels 430 miles in 5 hours at a constant speed.
steposvetlana [31]

Answer:

2.5

Step-by-step explanation:

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3 years ago
Let y=3t+6 be a linear function representing the distance, in feet, from home for an ant t minutes after starting out from a loc
Marysya12 [62]

Answer:

The y, in the equation, represents the total distance, in feet, from an ant t minutes after starting out from a location near its home. The 6 represents the the distance of the location where the ant starts traveling. The 3 represents the amount of feet covered in one minute. That's why when you increase the minute by one (experiment!!), the distance away from home increases by three, and that means that the ant is traveling at 3 ft/minute. (lol crazy)

3 = the ant's speed in ft/minute

6 0
3 years ago
Read 2 more answers
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