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julia-pushkina [17]
3 years ago
5

Two bikers rode at a constant speed on a 150-meter track. The data here show each biker's distance for a certain part of the rac

e. Who won the race and by how much?
Mathematics
1 answer:
Luda [366]3 years ago
4 0

Answer: 2 then 1

Step-by-step explanation:

Just did it

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Multiplication and division word problems
zubka84 [21]

Answer:

just divide 228 and 6

Step-by-step explanation:

228 divided by 6 is 76

8 0
2 years ago
2. P337. 23. A large box contains 10,000 ball bearings. A random sample of 120 is chosen. The sample mean diameter is 10 mm, and
Rashid [163]

Answer:

B is True

A, C. D are false

Step-by-step explanation:

Given :

Sample size, n = 120

Mean diameter, m = 10

Standard deviation, s = 0.24

Confidence level, Zcritical ; Z0.05/2 = Z0.025 = 1.96

The confidence interval represents how the true mean value compares to a set of values around the mean computed from a set of sample drawn from the population.

The population here is N = 10000

To obtain

Confidence interval (C. I) :

Mean ± margin of error

Margin of Error = Zcritical * s/sqrt(n)

Margin of Error = 1.96 * 0.24/sqrt(120)

Confidence interval for the 10,000 ball bearing :

10 ± 1.96 * (0.24) / sqrt(120)

Hence. The confidence interval defined as :

10 ± 1.96 * (0.24) / sqrt(120) is the 95% confidence interval for the mean diameter of the 10,000 bearings in the box.

4 0
2 years ago
Now complete the square for 2x^2 + 16x + 3.
o-na [289]

Answer:

To complete the square the equation would be 2(x+4)^2-29

4 0
2 years ago
A survey asked 10 boys and 10 girls how many text messages they sent the previous day. The
Genrish500 [490]

Answer:

You might want to put that in a picture, because that makes very little sense.

4 0
3 years ago
Which is the graph of y–3= - 2/3 (x + 6)?
NikAS [45]

Answer:

2 over 3

Step-by-step explanation:

4 0
3 years ago
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