3 years ago

Alex has a piece of

Mathematics

1 answer:

emmainna [20.7K]3 years ago

8 0

Answer:

He cut of 6 feet of ribbon.

Step-by-step explanation:

-39

You might be interested in

Solve the inequality |a + 3| > 14

Sever21 [200]

Answer:

a∈(-∝;-17)∩(11;+∝).

Step-by-step explanation:

|a+3|>14; ⇔ 14<a+3<-14; ⇔ 11<a<-17;

4 0

2 years ago

Ms. Fitzsimmons wanted to buy two of the same jackets in different colors online. The online store

zepelin [54]

Answer:

the cost of one jacket is $27.14

4 0

2 years ago

Read 2 more answers

Jill earns $9.50 per hour for her regular work time and $10.50 per hour for her overtime. Last week, Jill worked 43 hours of reg

Len [333]

Answer:$466.25

Step-by-step explanation:

9.50(43)+10.50(5.5)

8 0

3 years ago

justin's bill at a restaurant is $14.58 she pays with a twenty dollar bill how much change should she get back

Alex787 [66]

Answer:

5.42$

Step-by-step explanation:

Please mark brainliest?

7 0

2 years ago

Can someone help me please i'm so lost

finlep [7]

Answer:

see the attached

Step-by-step explanation:

<u>Step 1</u>.

The sample size is the number of numbers. There are 10 of them.

n = 10

The mean is the sum of the numbers (1240) divided by the number of them (10).

$\overline{x}=\dfrac{1240}{10}=124$

<u>Step 2</u>.

It is convenient to let a spreadsheet (or calculator) do the math. Enter the numbers and the formulas shown in the table, and let the spreadsheet do the rest.

$\sum{(x-\overline{x})^2}=1494$

The formulas for the sample variance and sample standard deviation are given. Fill in the numbers you have so far and do the indicated calculation.

$s^2=\dfrac{\sum{(x-\overline{x})^2}}{n-1}=\dfrac{1494}{9}=166\\\\s=\sqrt{166}\approx 12.88$

7 0

3 years ago