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3 years ago

A student said that since –9 is less than 4, then |–9| is less than |4|. Is the student correct? Explain why or why not

1 answer:

5 0

The student is not correct.

Absolute value means distance from zero
|-9| = 9
|4| = 4

Since 9 is greater than 4,
|-9| is greater than |4|

In other words, -9 is further from zero then 4

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In a poll, 74% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted o

Maksim231197 [3]

Answer:

324

Step-by-step explanation:

given that in a poll, 74% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted of murder?"

i.e. Sample proportion $p=0.74\\q =1-p =0.26\\$

Margin of error = 4% = 0.04

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Hence std error = $\frac{0.04}{1.645} \\=0.0243$

Std error is also equal to

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Sample size should be 324.

The formula is sample size = (Z critical value)^2 (pq)/(Margin of error )^2

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4 years ago

If (x+2) is a factor of x^3-6x^2+kx+10, k=

Alja [10]

If a binomial $(x-a)$ is a factor of a polynomial, then $a$ is a root of this polynomial.

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3 years ago

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Answer:

Step-by-step explanation:

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