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3 years ago

The following is a conversion table for hours and minutes. Which numbers belong in the hours column?

Mathematics

2 answers:

MissTica3 years ago

7 0

Answer:A

Step-by-step explanation:

svp [43]3 years ago

3 0

Answer:

Lesson 2 and metric conversions from Module 2. ... Problem 2: Convert hours to minutes. ... of minutes in one hour. How many minutes are in an hour? 0. 1. 2. 3. 4. 5. 6. 7. 8.

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Feliz [49]

Answer:

7 sales

Step-by-step explanation:

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2 years ago

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Use synthetic division to find the result when 3x^3 + 13x^2 + x – 12 is divided by X + 4.

IgorC [24]

Answer:

3x² + x - 3

Step-by-step explanation:

The way I like to do it is to get rid of the x's and just use the numbers in the case of synthetic division

Pretend the square root of the division symbol

-4 √ 3 12 1 -12

Quick note: We're dividing by -4 because we're dividing by x + 4

First bring down the 3

-4 √ 3 13 1 -12

Multiply it by 4 then bring add it to the next number

-4 √ 3 13 1 -12

-12

3 1

Add that number to the next one

-4 √ 3 13 1 -12

-12 -4

3 1 -3

Finally repeat the step for the last number

-4 √ 3 13 1 -12

3 -12 -4 +12

3 1 -3 0

Now take those bottom numbers and add back the x's but with one less power, so the starting x³ would now become x², x² would become x, and so on

3x² + 1x - 3

8 0

2 years ago

Need help on these questions.

STALIN [3.7K]

Answer:

1) a < -8 or a > 8

2) n = -18 or n = 18

3) z = - 1/2 or z = 1/2

Step-by-step explanation:

5 0

2 years ago

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Help on this question

ad-work [718]

Answer:

is it me or can I not see anything

6 0

3 years ago

Sample size: A researcher is trying to decide how many people to survey. Which of the following sample sizes will result in a co

oksian1 [2.3K]

Answer:

Step-by-step explanation:

Given that a researcher is trying to decide how many people to survey.

We have confidence intervals are intervals with middle value as the mean and on either side margin of error.

Confidence interval = Mean ± Margin of error

Thus confidence interval width depends on margin of error.

Margin of error = $Critical value *\frac{\sigma}{\sqrt{n} }$

Thus for the same confidence level and std deviation we find margin of error is inversely proportional to square root of sample size.

Hence for small n we get wide intervals.

So if sample size = 300, the researcher will get wider confidence interval

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3 years ago