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3 years ago

Please help me!

Mathematics

2 answers:

RUDIKE [14]3 years ago

7 0

Answer:

B. 1/9

Step-by-step explanation:

The positive square root of "x^2 - 4x + 4" is "x - 2". That value is already given to you, 1/3. Just square 1/3 to get 1/9.

serious [3.7K]3 years ago

4 0

Answer:

B 1/9

Step-by-step explanation:

x − 2 = 1/3

Add 2 to both sides

X+2-2 = 1/3+2

x = 7/3

Put x = 7/2 into the expression x² − 4x + 4

(7/3)² - 4(7/3) + 4

49/9 - 28/3 + 4

= (49-84+36)/ 9

= 1/9

I hope this was helpful, please mark as brainliest

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A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtain

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Step-by-step explanation:

The formula for sample size needed for interval estimate of population proportion :-

$n=p(1-p)(\frac{z_{\alpha/2}}{E})^2$

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3 years ago

Earl invested 6,000 in a money market account that pays 5% interest quarterly. How much money will he have in his account after

Sedbober [7]

Answer:

The amount becomes $6964.53 after 3 years .

Step-by-step explanation:

Formula

$Amount = P (1+\frac{r}{4})^{4t}$

Where P is the principle , r is the rate of interest in the decimal form and t is the time in the years .

As given

Earl invested 6,000 in a money market account that pays 5% interest quarterly for 3 years .

P = $6000

5% is written in the decimal form.

$= \frac{5}{100}$

= 0.05

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t = 3 years

Putting all the values in the formula

$Amount = 6000(1+\frac{0.05}{4})^{4\times 3}$

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$Amount = 6000\times 1.16075452$

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Therefore the amount becomes $6964.53 after 3 years .

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3 years ago

1. Fifty-eight thousandths

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3 years ago