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3 years ago

Which of the following expressions results in 0 when evaluated at x = 4?

Mathematics

2 answers:

Naily [24]3 years ago

7 0

A).(x - 10) X (x - 4)
(4 - 10) X (4 - 4)
6 X 0 = 0

IRISSAK [1]3 years ago

7 0

Answer:

option A

Step-by-step explanation:

find the following expressions results in 0 when evaluated at x = 4

we plug in 4 for x and see which expression gives us answer 0

A) $(x - 10)(x - 4)$

$(4 - 10)(4 - 4)=0$

B) $(x + 4)(x - 10)$

$(4 + 4)(4 - 10)=-48$

C) $4x(x - 6)$

$4(4)(4 - 6)=-32$

D) $(x + 6)(x - 2)$

$(4 + 6)(4 - 2)=20$

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3 years ago

The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e

Viefleur [7K]

Answer:

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Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

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Suppose a sample of 1537 tenth graders is drawn. Of the students sampled, 1184 read above the eighth grade level. So 1537 - 1184 = 353 read at or below this level. Then

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The upper limit of this interval is:

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3 years ago