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3 years ago

Can someone plss help me with these questions asap!!!!!

Mathematics

1 answer:

Vitek1552 [10]3 years ago

7 0

Answer:

Sorry but i don’t know what a would be because I didn’t learn that yet, but I can help with b

Step-by-step explanation:

B) in 2025, there will be about 451 graduating seniors

in the graduates column you can see the numbers increase by 8

so add 387 to 8 multiple times, then each number gets you your year

do this until you get to 2025 hope this makes sense

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I need help ASAP plzz help me in math

Rainbow [258]

You just need to replace x with the value given

x = -5
-27
27
-8
-16

x = -15
-67
57
-20
-28

× = 0
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-2
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4 0

4 years ago

If you earn $450 per week what is your annual salary?

scZoUnD [109]

Answer:

$23400

Step-by-step explanation:

There are 52 weeks in a year, so multiply 450 by 52.

$23400

7 0

3 years ago

Read 2 more answers

For the data set 6,5,10,11,13, the mean, x, is 9. What is the standard deviation?

Ratling [72]

Answer:

3.39

Step-by-step explanation:

We will use SD formula to find our answer.

$\sigma=\sqrt{ \frac{\sum (x-\overline{x})^{2}}{N-1} }$

$\sigma$ = Standard deviation.

$\overline{x}$ = Mean.

N= Numbers of data-points.

We have been given that mean of our data set is 9. So we will find the square of each data point's distance to the mean.

Now let us substitute our given values in above formula.

$\sigma=\sqrt{ \frac{(6-9)^{2}+(5-9)^{2}+(10-9)^{2}+(11-9)^{2}+(13-9)^{2}}{5-1} }$

$\sigma=\sqrt{ \frac{(-3)^{2}+(-4)^{2}+(1)^{2}+(2)^{2}+(4)^{2}}{4} }$

Upon adding the square of distances we will get,

$\sigma=\sqrt{ \frac{9+16+1+4+16}{4} }$

$\sigma=\sqrt{ \frac{46}{4} }$

Upon dividing 46 by 4 we will get,

$\sigma=\sqrt{ 11.5}$

Upon taking square root of 11.5 we will get,

$\sigma=3.3911649915626341\approx 3.39$

Therefore, the standard deviation for our given data set will be 3.39.

3 0

3 years ago

Read 2 more answers

Jerry had $1,018.00 in savings. Last week he spent $84.00 on a desk and $372.00 on a computer from his savings. This week at a p

Mama L [17]

The correct answer is$412.00

8 0

3 years ago

Whoever can answer all these get brainliest please! this is due today!!

OLEGan [10]

#1 is -32
#2 is -11
#3 is -5
#4 is 6

3 0

3 years ago