2 years ago

WHOEVER IS RIGHT GETS BRAINLIST

Mathematics

1 answer:

pochemuha2 years ago

4 0

The answer to the first question is b
I don’t know the answer to the second one sorry

You might be interested in

The ages of Jamal, Wesley, an John are consecutive integers.the sum of thier ages is 108.what are thier ages .

hodyreva [135]

Answer:

Step-by-step explanation:

We have three people

jamal = x (since im guessing hes the youngest)

wesley= x+1

John= x+2

the formula you would use is x+x+1+x+2=108

when you simplify that you get 3X+3=108

you subtract the 3 from 108 which leaves you with 3X=105

divide that by 3 which makes x=35

jamal is 35

wesley is 36

john is 37

3 0

2 years ago

The shape of the distribution of the time required to get an oil change at a 10 minute oil change facility is unknown. However,

lyudmila [28]

Answer:

The answer is below

Step-by-step explanation:

a) For a normal model the sample size has to be equal or greater than 30 so that it can be a normal distribution.

b) Given that:

μ = 11.2 minutes, σ = 4.8 minutes, n = 45

The z score determines how many standard deviations the raw score is above or below the mean. It is given by:

$z=\frac{x-\mu}{\sigma} \\For\ a\ sample\ size(n)\\z=\frac{x-\mu}{\sigma/\sqrt{n} }$

For x < 10 minutes

$z=\frac{x-\mu}{\sigma/\sqrt{n} }\\\\ z=\frac{10-11.2}{4.8/\sqrt{45} }= -1.68$

Therefore from the normal distribution table, P(x < 10) = P(z < -1.68) = 0.0465

7 0

3 years ago

What should you do to both sides of the inequality in order to solve x + (-2) > 3?

lilavasa [31]

x+(-2) >3

open the bracket

x-2>3

collect the like terms by taking 2 to the other side

x>3+2

x>6

3 0

2 years ago

Simplifica lo siguiente.

GREYUIT [131]

my number 5467832342

Step-by-step explanation:

6 0

2 years ago

The hot water faucet takes four minutes to fill the tub, in the cold water faucet takes 3 minutes for the same job. How long to

Sindrei [870]

Answer: 1.12 minutes

7 0

2 years ago

Read 2 more answers