All categories

3 years ago

Please answer this (:

Mathematics

1 answer:

svetlana [45]3 years ago

7 0

Since we know that there is a 1 in 12 chance that the spinners will land on "4" and "C" and we know the total amount of spins is 240, we can find one twelfth of 240. To do so, you multiply 240 by 1/12 which is the same as 240/12. This can be simplified to 20 through division. Therefore, the answer is 20 times.

I hope this helps.<span />

You might be interested in

Pls help meee lookat the screenshot

Oduvanchick [21]

The diagram shows that the total number of buttons with ¾ inch length is 3.

So, if she lines all the ¾ inches buttons, then the total length will be

= ¾ inches × 3

= 9/4 inches

= 2 ¼ inches

8 0

3 years ago

Read 2 more answers

PLEASE HELP!! (50pts)

Ad libitum [116K]

Answer:

C. 248°

Step-by-step explanation:

The arc measure of a full circle is 360 degrees.

Arc XZ measures 112 degrees.

Arcs XZ and XWZ add to a full circle, or 360 degrees.

The measure of arc XWZ = 360 degree - 112 degrees = 248 degrees

4 0

4 years ago

Read 2 more answers

Someone plz answer.

zhenek [66]

So for nowHey so formula carries information for me right now

8 0

3 years ago

Multiply the following and express your answer in appropriate scientific notation:

omeli [17]

Step-by-step explanation:

$(2.9 \times 10^{23}) \times (1.1 \times 10^{-43}) \\ = 2.9 \times 1.1 \times 10^{23 - 43} \\ = 3.19 \times 10^{ - 20}$

3 0

4 years ago

In order to test whether the average waiting time this year differs from last year, a sample of 25 data were collected this year

irina [24]

Answer:

True

Step-by-step explanation:

Confidence interval for banking service in a given confidence level can be calculated as M±ME where

M is the mean banking service in the sample and
ME is the Margin of Error

margin of error (ME) is calculated using the formula

ME= $\frac{t*s}{\sqrt{N} }$ where

t is the corresponding statistic in the given confidence level

s is the standard deviation of the sample(or of the population if it is known)

N is the sample size

t-statistic for 99% confidence level is always bigger than 95% confidence level which makes Margin of Error bigger and thus confidence interval wider.

6 0

3 years ago