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3 years ago

The sum of three consecutive integers is 186. what are the integers?

Mathematics

1 answer:

ratelena [41]3 years ago

3 0

Step-by-step explanation:

the answer is 4

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there are 32 students in a class and 20 of them own at least one pet what fraction of the class own pets

xxMikexx [17]

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3 years ago

Find the recursive formula.<br> 8, 12, 16, 20, ...

ArbitrLikvidat [17]

First term, a
1

=4
Second term, a
2

=8
Common difference, d=a
2

=a
1

d=8−4=4
∴ The common difference is 4

7 0

3 years ago

"The sum of a number and 4."

kenny6666 [7]

Answer:

n + 4

Step-by-step explanation:

It´s like a normal sum, but since the number is unknown just put n.

7 0

4 years ago

Read 2 more answers

A true/false test has 40 questions. Suppose a passing grade is 30 or more correct answers. Test the claim that a student knows m

Angelina_Jolie [31]

Answer:

z≈3.16

p≈0.001

we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level.

Step-by-step explanation:

As a result of step 2, we can assume normal distribution for the null hypothesis

z statistic is computed as follows:

z= $\frac{X-M}{\frac{\sqrt{p*(1-p)} }{\sqrt{N} } }$ where

X is the proportion of correct answers in the test ( $\frac{30}{40}$ )
M is the expected proportion of correct answers according to the null hypothesis (0.5)

p is the probability of correct answer (0.5)
N is the total number of questions in the test (40)

z= $\frac{0.75-0.50}{\frac{\sqrt{0.5*(0.5)} }{\sqrt{40} } }$ ≈ 3.16

And corresponding p value for the z-statistic is p≈0.001.

Since p<0.05, we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level.

7 0

4 years ago

Which is equivalent to 64 to the 1/4 power

Sladkaya [172]

Answer:

The answer to your question is the first option

Step-by-step explanation:

64 $^{1/4}$