All categories

3 years ago

A sample of size 39 will be drawn from a population with mean 23 and standard

Mathematics

1 answer:

Agata [3.3K]3 years ago

7 0

Answer:

it is b

Step-by-step explanation:

I did it on ed 2020

You might be interested in

Can someone help me?

mart [117]

-2 + 8 = 6

because if you have 2 negative circles ●● and 8 positive circles ○○○○○○○○ then once you take away the first two circles you get you answer. You do the opposite. :) ( hope that make sense... )

3 0

3 years ago

Find the difference between8/15 and 2/3 Show all calculations in your final answer.

kherson [118]

Answer:

$\frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}$

Step-by-step explanation:

Let the value of a number 'a' be = 8/15

Let the value of a number 'b' be = 2/3

The difference between the two numbers can be calculated by subtracting the numbers

$a-b=\frac{8}{15}-\left(\frac{-2}{3}\right)$

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

$=\frac{8}{15}-\frac{-2}{3}$

$\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}$

$=\frac{8}{15}-\left(-\frac{2}{3}\right)$

$\mathrm{Apply\:rule}\:-\left(-a\right)=a$

$=\frac{8}{15}+\frac{2}{3}$

$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}$

$=\frac{8+10}{15}$

$=\frac{18}{15}$

$\mathrm{Cancel\:the\:common\:factor:}\:3$

$=\frac{6}{5}$

Thus,

$\frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}$

3 0

2 years ago

Approximately how many gallons are in

Nataliya [291]

Answer:

1.8

Step-by-step explanation:

cuz

if 1L is equal to 0.26

then 7×0.26

= 1.8

hope it helps

8 0

2 years ago

Read 2 more answers

Use =, <, or > signs (ratios)

oksano4ka [1.4K]

Answer:

< > > I am pretty sure that is it

5 0

3 years ago

The value of y is directly proportional to the value of x . If y=55 when x = 120 , what is the value of y when x = 60

Lady_Fox [76]

Answer:

The answer would be 27.5

Step-by-step explanation:

Divide 55 by 2

3 0

2 years ago