What is the equation in point-slope form of the line passing through (2,5) and (-1,8)?

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

7 0

Answer:

y=-1x+7

Step-by-step explanation:

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0.482 × 61.2² ÷√98.01

mixer [17]

Answer:

Use by Prime factorisation method

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2 years ago

A number is increased by 50% and then another 25%. By how much is it increased in total?

blsea [12.9K]

Answer:

87.5 percent

Step-by-step explanation:

when you have to increase a number by 50 percent you are multiplying it by 1.5

later when you increase the number by 25 percent you multiply it by 1.25

you can multiply 1.5 by 1.25 to get your answer

1.5 * 1.25 is 1.875

so the percent increase is 87.5 percent

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3 years ago

) If the pattern shown continues, how many black keys appear on a portable keyboard with 49 white keys? Suggestion: use equivale

andriy [413]

Answer:

Step-by-step explanation:

Here we see 5 black keys for every 7 white keys.

So the ratio is 5:7

If we need 49 white keys, find the amount we scale the original ratio by:

49/7 = 7

So we are scaling by a factor of 7.

The number of black keys would be 5 * the scale of 7. = 35

So there should be 35 black keys.

5 0

3 years ago

Read 2 more answers

A school district is considering a change that would involve switching the daily start times for its elementary and

aleksklad [387]

Using the Central Limit Theorem, it is found that each random sample must have at least 10 parents supporting the change and 10 opposing.

<h3>What does the Central Limit Theorem state?</h3>

It states that for a <u>proportion p in a sample of size n</u>, the sampling distribution of sample proportion is approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1 - p)}{n}}$ , as long as $np \geq 10$ and $n(1 - p) \geq 10$ .