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Alecsey [184]
2 years ago
14

Rick says to find 2 times 5, he can use counting by 5s: 5,10,15,20,25, What Rick did wrong

Mathematics
1 answer:
artcher [175]2 years ago
7 0
Ok  so 5s to find 2*5 so s=2 so 5(2)=5*2=10  rick went wrong by counting 5 five times which is 5*5 not 2*5 which is 5+5=10 hope this helps! Thank you!
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Multiple choice someone please answer pleaseeee
Marysya12 [62]

Answer:

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6 0
3 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

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Standard deviation, s = 0.24

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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.

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To obtain

Confidence interval (C. I) :

Mean ± margin of error

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

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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
What is the probability of tossing two heads
vodka [1.7K]

Hello!

Each time, there will be a 1/2 chance of tossing a head. Therefore, we multiply our two probabilities.

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Therefore, we have a 1/4 or 25% chance of tossing two heads in a row.

I hope this helps!

3 0
3 years ago
Read 2 more answers
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Karolina [17]
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8 0
2 years ago
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Dimas [21]
Each scarf costs $8.75.
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3 years ago
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