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3 years ago

I need to know how to find the slope?

Mathematics

2 answers:

SashulF [63]3 years ago

8 0

the slope is 2

4/2= 2

KIM [24]3 years ago

3 0

The slope is 2.

Count how many units up and to the right the second point is from the first point. Divide these two numbers. 4 / 2 = 2

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it took 20 minutes to print out a 250 page report. at the speed how many pages could this printer produce in 30 minutes

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375.
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4 years ago

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3 years ago

A recent kellogg survey shows that approximately 34% of americans eat breakfast. suppose alex takes a random sample of four amer

vlabodo [156]

This kind of experiments are ruled by Bernoulli's formula. If you have probability p of "success", and you want k successes in n trials, the probability is

$\binom{n}{k}p^k(1-p)^{n-k}$

It's easier to compute the first probability by difference: instead of computing the probability of the event "at least one of the surveyed eats breakfast", let's compute the probability of its contrary: none of them eats breakfast. So, we want 0 successes in 4 trials, with probability of success 0.34. The formula yields

$\binom{4}{0} 0.34^0 0.64^4 = 0.64^4 \approx 0.17 = 17\%$

Since the contrary has probability 17%, our event "at least one of the surveyed eats breakfast" has probability 83%.

As for the second question, the event "at least three of the surveyed eats breakfast" is the union of the events "exactly three of the surveyed eats breakfast" and "exactly four of the surveyed eats breakfast". So, we just need to sum their probabilities:

$\binom{4}{3} 0.34^3 0.64^1 +\binom{4}{4} 0.34^4 0.64^0 = 4\cdot 0.34^3 0.64 + 0.34^4 \approx 0.11 = 11\%$

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3 years ago

Analyze the diagram below and complete the instructions that follow.

Jlenok [28]

Step-by-step explanation:

$scale \: factor = \frac{7}{28} = \frac{1}{4} \\$

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3 years ago

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Alika [10]

Answer:

125 degrees and 55 degrees

Step-by-step explanation:

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3 years ago