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3 years ago

Which fraction is equivalent to 15/30 5/6 3/4 2/4 3/5

Mathematics

1 answer:

ira [324]3 years ago

8 0

15/30=2/4

you divide 15 by 7.5=2, and 30 by 7.2 which equals 4

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A research firm conducts a sample survey and discovers that 90% of people are more afraid of snakes than they are of flying. If

nikitadnepr [17]

Answer:

Different values of margin of error for different significance level.

Step-by-step explanation:

We are given the following in the question:

p = 90% = 0.9

Sample size, n 790

We have to find the margin of error.

Formula:

$z_{stat}\sqrt{\dfrac{p(1-p)}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$ME = \pm 1.96\sqrt{\dfrac{0.9(1-0.9)}{790}}\\\\ME = \pm 0.021$

$z_{critical}\text{ at}~\alpha_{0.10} = 1.64$

$ME = \pm 1.64\sqrt{\dfrac{0.9(1-0.9)}{790}}\\\\ME =\pm 0.018$

$z_{critical}\text{ at}~\alpha_{0.10} = 2.58$

$ME =\pm 2.58\sqrt{\dfrac{0.9(1-0.9)}{790}}\\\\ME =\pm 0.028$

7 0

3 years ago

simplify 4 (5c ÷4d)-16 show me how you figure it out to put the numbers in this and I'll be asking two more questions for the ni

Darya [45]

$4(5c + 4d) - 16 \\ 20c + 16d - 16$
This is your final answer none of the terms are "like terms".

7 0

3 years ago

PLS HELP ME I WILL MARK!!!!~ don't need to show work

Sauron [17]

I’m not so sure, but I think it might be:
f(x)=x-1
Sorry if wrong

6 0

3 years ago

Read 2 more answers

Hey<3 If you help you’re amazing if you don’t you’re awesome.

OleMash [197]

<h3>Answer: 576 </h3>

============================================================

Check out the diagram below.

I've split the figure into 3 separate blocks. We calculate the volume of each block, then add up those volumes to get the final answer.

Block A = largest block on the left
Block B = middle block
Block C = smallest block on the right

So,

volume of block A = length*width*height = 6*6*8 = 288 ft^3
volume of block B = length*width*height = 6*6*5 = 180 ft^3
volume of block C = length*width*height = 6*6*3 = 108 ft^3

Therefore, the total volume we're working with is:

A+B+C = 288+180+108 = 576 cubic feet

The "cubic feet" or "ft^3" portion is already taken care of by your teacher, so you just need to type in the number itself.

4 0

2 years ago

Nick has $7.00. Bagels cost $0.75 each, and a small container of cream cheese costs $1.29. Write an inequality to find the numbe

saw5 [17]

Answer:

7 IS LESS THAN OR EQUAL TO 7-.75X+1.29

Step-by-step explanation:

X IS THE NUMBER OF BAGELS BOUGHT

3 0

3 years ago