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3 years ago

I WILL MAKE YOU THE BRIANLIEST AND PLS HELP ASAP

Mathematics

1 answer:

frez [133]3 years ago

5 0

Answer:

you didnt give enough information

Step-by-step explanation:

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Find 0.8% of 1,046<br><br> ddddddddddddddddddddddddddddddddddddddd

evablogger [386]

0.8/100 * 1046

=8.368

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3 years ago

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Which phrase is represented by 3(8-n)t2

Alex787 [66]

The answer is d.
Two more (+2) than three times (3) the difference between eight and a number (8-n)

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3 years ago

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3 years ago

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In a survey of 1005 adults, a polling agency asked, "When you retire, do you think you will have enough money to live comfort

Sphinxa [80]

Answer: (0.504, 0.556)

Step-by-step explanation:

Given : Sample size : n= 1005

Number of adults stated that they were worried about having enough money to live comfortably in retirement = 531

Then the proportion of adults stated that they were worried about having enough money to live comfortably in retirement : $p=\dfrac{531}{1005}\approx0.53$

Significance level : $\alpha: 1-0.90=0.1$

Critical value : $z_{\alpha/2}=1.645$

The confidence interval for population proportion is given by :-

$p\pm\ z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\=0.53\pm(1.645)\sqrt{\dfrac{0.53(1-0.53)}{1005}}\\\\\approx0.53\pm0.026\\\\=(0.504,\ 0.556)$

Hence, the 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement = (0.504, 0.556)

6 0

3 years ago

12 gallons of water fill a tank to 3\4 capacity.

harkovskaia [24]

Answer:

A. 16, B.32

Step-by-step explanation:

We will say that $T$ is the total capacity of the tank.

Since 12 gallons of water fill the tank to 3/4 capacity, we know that 12 gallons is 3/4 of the total capacity. Hence,

$12=T \cdot \frac{3}{4}$ .

The last equation tells us that $T=\frac{4\cdot 12}{3}=16$ .

We will say that D is the number of half-gallon bottles that can be filled with the water of the tanke, note that D times 1/2 must be the total capacity of the tank. Hence,

$D \cdot \frac{1}{2}=16$

and so, we get that $D=2 \times 16=32$

7 0

3 years ago