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3 years ago

Фhelp me out please im so confused! pleaSE?

Mathematics

1 answer:

Flura [38]3 years ago

6 0

Answer:

Step-by-step explanation:

I can't really tell from the image but it looks like the lines are parallel to each other

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17−{2+2[−1(7−10)]2} hiii

umka21 [38]

Answer:

Hello!!

When simplifying the expression

$17-{2+2[-1(7-10)]2}$

The correct answer would be

$3$

Hope this helps!!

3 0

3 years ago

I need help with this problem <br> X+20=35

Mumz [18]

Answer:

subtract 20 on both sides then that should give you the answer

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is the slope of a line that<br> crosses through the points (-1,-8)<br> and (2, 1)?

likoan [24]

Answer:There's the answer

Just open it

Step-by-step explanation:

5 0

3 years ago

A highly selective boarding school will only admit students who place at least 2.5 standard deviations above the mean on a stand

VladimirAG [237]

Answer:

The minimum score that an applicant must make on the test to be accepted is 360.

Step-by-step explanation:

Given : A highly selective boarding school will only admit students who place at least 2.5 standard deviations above the mean on a standardized test that has a mean of 300 and a standard deviation of 24.

To find : What is the minimum score that an applicant must make on the test to be accepted?

Solution :

We apply the z formula,

$z=\frac{x-\mu}{\sigma}$

Where, z value= 2.5

$\mu=300$ is the mean of the population

$\sigma=24$ is the standard deviation

x is the sample mean.

Substituting the values in the formula,

$2.5=\frac{x-300}{24}$

$2.5\times24=x-300$

$60=x-300$

$x=60+300$

$x=360$

Therefore, The minimum score that an applicant must make on the test to be accepted is 360.

8 0

3 years ago

Goal: Find a reasonable domain and range for each function.

slamgirl [31]

D(x) = 32x......ur range will be ur d(x) values and the domain will be ur x values.....where d(x) = total distance and x = gallons.
So we already know that ur car's fuel tank holds 17 gallons....therefore, ur domain has to be 17 gallons or less...but it cant be negative.
so ur domain is : 0 < = x < = 17

now for ur range....since the car only holds 17 gallons....d(x) = 32(17) = 544 miles....thats the farthest it can go...therefore it can go from 0 to 544 miles....so ur range is : 0 < = d(x) < = 544

or u could write it as : domain = (0,17) with 0 representing an empty tank and 17 representing a full tank.....and ur range = (0,544) with 0 representing 0 miles driven and 544 representing 544 miles driven

3 0

4 years ago