All categories

2 years ago

I need this fast it’s due tonight

Mathematics

1 answer:

defon2 years ago

7 0

Answer:

Step-by-step explanation:

diameter is just radius times 2

hope this helps!

please mark me brainliest! thanks!

You might be interested in

Eric is saving $60 every week to buy a new laptop that costs $480. He has already saved $180.

Rama09 [41]

Answer:

Step-by-step explanation:

You saved $200 on a laptop you purchased online. If this was a 25% savings from the original price, find the original cost of the laptop.

13,962 results

Math

You saved $200 on a laptop you purchased online. If this was a 25% savings from the original price, find the original cost of the laptop.

7 0

3 years ago

Read 2 more answers

A manager records the repair cost for 4 randomly selected stereos. A sample mean of $82.64 and standard deviation of $14.32 are

zysi [14]

Answer:

CI = (70.861 , 94.418)

Step-by-step explanation:

In order to determine the 90% confidence interval you use the following formula (for a population approximately normal):

$CI=(\overline{x}-Z_{\alpha/2}\frac{\sigma}{\sqrt{n}},\overline{x}+Z_{\alpha/2}\frac{\sigma}{\sqrt{n}})$ (1)

$\overline{x}$ : mean = 82.64

σ: standard deviation = 14.32

n: sample = 4

α: tail area = 1 - 0.9 = 0.1

Z_α/2 = Z_0.05: Z factor = 1.645

You replace these values and you obtain:

$Z_{0.05}(\frac{14.32}{\sqrt{4}})=(1.645)(\frac{14.32}{\sqrt{4}})=11.778$

The confidence interval will be:

$CI=(82.64-11.778,82.64+11.778)=(70.861,94.418)$

The 90% confidence interval is (70.861 , 94.418)

6 0

3 years ago

What does 6+9 equal all together

Yuliya22 [10]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

a store sells 14.5- ounces cans of tomatoes for $0.89 each. if the store sells 35 cans one day, how many total ounces of tomatoe

solniwko [45]

Answer:

451.675

Step-by-step explanation:

14.5x35=507.5

507.5x0.89=451.675

4 0

3 years ago

HELP ME ASAP I NEED A GOOD GRADE

loris [4]

the value of angle K is 56

3 0

2 years ago