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3241004551 [841]
3 years ago
5

Eric has been donating books he no longer needs to his local library. After 3 months of donating, he had 157 books left in his r

oom. After 8 months of donating, he had 102 books left in his room. How many books per month did Eric donate on average between months 3 and 8? (2 points)
Mathematics
1 answer:
vladimir1956 [14]3 years ago
6 0
He donated 11 books on average every month
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Which of the following numbers is a multiple of 8?
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16, 24, 32, 40, 48, 56, 64, 72, etc.
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3. A penny is made by combining 0.1 g of a copper alloy that costs $5.50 per kilogram (1000 grams) with
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The null hypothesis claims that the proportion of community college students who work full-time is 0. 45. The alternative hypoth
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The stronger the evidence is against the null hypothesis, the higher the divergence from it.

What do you mean by null hypothesis ?

A statistical hypothesis known as a null hypothesis asserts that no statistical significance can be found in a collection of provided observations. Using sample data, hypothesis testing is performed to judge a theory' veracity. It is sometimes referred to as just "the null," and its symbol is H_{0}. To determine if a theory regarding markets, investing methods, or economies is correct or wrong, quantitative analysts employ the null hypothesis,

The null hypothesis states that the percentage of the population who works full time is 0.45.

As a result, 450 persons who are randomly selected from a population of 1000 work full-time.

A different hypothesis states that the ratio is higher than 0.45.

In the options provided, the proportion for the first option is 300/1000, or 0.3.

In the second choice, 500/1000 equals 0.5

Third alternative: 700/1000 = 0.7

Therefore, the stronger the evidence is against the null hypothesis, the higher the divergence from it.

To learn more about the null hypothesis from the given link.

brainly.com/question/15980493

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1 year ago
The base edge of an oblique square pyramid is represented as x cm. If the height is 9cm, what is the volume of the pyramid in te
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A is correct:

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5 0
3 years ago
Read 2 more answers
What is an equation of the line that passing through the points (-2, -5) and (4, 7) ?
monitta

Answer:

y=2x-1

Step-by-step explanation:

Use the slope-intercept formula: y=mx+b where m is slope and b the y-intercept.

(-2,-5)(4,7)

Use the slope formula for when you have two points:

\frac{y(2)-y(1)}{x(2)-x(1)}=\frac{rise}{run}

Rise over run is the change in the y-axis over the change in the x-axis. Insert values:

\frac{7-(-5)}{4-(-2)}

Simplify parentheses (negative+negative=positive)

\frac{7+5}{4+2}

Simplify

\frac{12}{6}=2

2 is the slope:

y=2x+b

Now use one of the points to find the y-intercept by substituting the x and y values into the equation. Solve for b:

(4,7)

y=2x+b\\7=2(4)+b

7=8+b\\7-8=8-8+b\\7-8=b\\-1=b\\b=-1

The y-intercept is -1. Insert into the equation. Change the + symbol to -:

y=2x-1

Done.

6 0
3 years ago
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