3 years ago

Can someone help me ASAP !

Mathematics

2 answers:

babymother [125]3 years ago

5 0

Answer:

All of them you need answered?

Step-by-step explanation:

Novay_Z [31]3 years ago

4 0

Answer:

the first questions looks ike it reflects over all of them

You might be interested in

3(12+b)=3x12+3xb

Vikentia [17]

This is the distributive property. You take what is outside of the parenthesis and DISTRIBUTE it inside the parenthesis.

4 0

3 years ago

Which of the following expressions is equivalent to 1/3^-3?

sweet [91]

I believe B . Because it seems equivalent

8 0

4 years ago

How do I find a percent of a number?

ddd [48]

You can take 0.48 as a number, multiply by 100 to that and you get 48%

3 0

3 years ago

g Z-Test for Population Means Calculate z-statistic of a population mean. Keith sampled 10 private universities in Colorado and

scoray [572]

Answer: 2.46

Step-by-step explanation:

Formula for x-score is given by :-

$Z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

, where $\overline{x}$ = Sample mean , $\mu$ = population mean, $\sigma$ = population standard deviation, n= sample size.

As per given , n=10

$\mu$ = $29,056

$\sigma$ = $3,339

$\overline{x}$ = $31,650

Then,

$z=\dfrac{ 31650-29056}{\dfrac{3339}{\sqrt{10}}}\\\\=\dfrac{2594}{\dfrac{3339}{3.16227766017}}\\\\=\dfrac{2594}{1055.88451073}=2.45670807142\approx 2.46$

Hence, the z-score = 2.46

4 0

3 years ago

Sam is riding his bicycle. He rides for 11.2 kilometers at a speed of 7 kilometers per hour. For how many hours does he ride?

Airida [17]

Answer:

1.6 hours

Step-by-step explanation:

you divide 11.2 by 7

hope this is correct

6 0

3 years ago

Read 2 more answers