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3 years ago

writing at a Constant rate, amir wrote a 16-page report in 2 1/2 hours. at what constant rate did amir write

Mathematics

1 answer:

gavmur [86]3 years ago

7 0

Answer:

6.4

Step-by-step explanation:

all you have to do is divide 16/2.5 (2 1/2) and you get 6.4

hope this helped!!

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EleoNora [17]

Answer:

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Step-by-step explanation:

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2 years ago

-4(2x-3)>-28 please i need this result

Len [333]

-4 (2x - 3) > -28

Divide by -4 on both sides. Since we're dividing by a negative, we need to switch the sign.

2x - 3 < 7

Add 3 to both sides

2x < 10

Divide by 2 on both sides

x < 5

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3 years ago

(b²) ____ = b⁻⁶<br> find the missing exponent

allsm [11]

$(b^2)^{-3}=b^{2*(-3)}=b^{-6}$

<span>the missing exponent is -3</span>

6 0

3 years ago

I will give brainliest

irina [24]

Answer:

Below

Step-by-step explanation:

Population: 10,000

Sample: 250

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2 years ago

Liz wants to estimate the percentage of people who rent their home. She surveys 320 individuals and finds that 176 rent their ho

SOVA2 [1]

Answer: 0.065

Step-by-step explanation:

Given : Sample size : n= 320

The sample proportion of people who rent their home : $p=\dfrac{176}{320}=0.55$

Significance level : $\alpha:1-0.98=0.02$

Then , Critical value : $z_{\alpha/2}=2.33$

The formula to find the margin of error : -

$E=z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\\Rightarrow\ E=(2.33)\sqrt{\dfrac{0.55(1-0.55)}{320}}\\\\\Rightarrow\ E=0.064799034281\approx0.065$

Hence, the margin of error for the confidence interval for the population proportion with a 98% confidence level =0.065

4 0

3 years ago