All categories

3 years ago

Which equation represents the situation Please help me

Mathematics

2 answers:

stiv31 [10]3 years ago

6 0

A university charges a $100 application fee and $720 per month

x = the number of months

y = total cost

y = 720x + 100

[they charge $720 per month(x) plus a fee of $100]

Your answer is the last option.

Virty [35]3 years ago

4 0

100 dollars should be a one time fee so that has to be added to the equation, and since it is a one time fee it should not have a variable next to it.

It also says that you have to pay 720 dollars per month, so it has to have a variable next to it to show the number of months that she needs to pay that amount of money.

The answer should be D.

y= 720x +100

You might be interested in

MARKING BRAINLIST! A blu-ray has a circumference of 25.12 inches. What is the radius of the blu-ray?

Genrish500 [490]

Answer: 3.99797217..

Step-by-step explanation:

formula for the circumference is pi x diameter

divide circumference by pi

25.12/pi = 7.9959443...

divide that by two to get the radius which would be 3.997972...

6 0

3 years ago

4(5+6) helpppppppp :((((

Anna007 [38]

5+6= 11 times 4 is 44

4 0

3 years ago

Read 2 more answers

Please help!! Due soon!! It's multiple choice!! Can you PLEASE try to show the work? I will give you brainliest!! Please answer

liberstina [14]

16)

(4x + 2) is equal to 150 because they are vertical angles. When two lines intersect, on the opposite sides of the x like these are will be equal to one another. So let’s make them equal to each other.

4x + 2 = 150

Subtract 2

4x = 148

Divide by 4

x = 37

So it will be A

17)

The two angles added up with each other

34 + 146 = 180

Since these two add up to 180 degrees, they would be supplementary angles.

So, H

18)

The two angles will make a 90 degree angle (as shown with the little box formed in the corner)

When angles add up to make 90 degrees, they will be complimentary angles.

So, C.

3 0

3 years ago

Determine the unit rate of a marathon runner that travels 5/2 miles in 15min

VladimirAG [237]

If he travels 5/2 miles in 15 mins, then in 1 min he will travel 5/2 ÷ 15 = 1/6 miles and it will take him 15 ÷ 5/2 = 6 mins to travel 1 mile.

4 0

3 years ago

Consider the function on the interval (0, 2π). f(x) = sin x + cos x (a) Find the open intervals on which the function is increas

Annette [7]

Answer:Increasing in x∈(0,π/4)∪(5π/4,2π) decreasing in(π/4,5π/4)

Step-by-step explanation:

given f(x) = sin(x) + cos(x)

f(x) can be rewritten as $\sqrt{2} [\frac{sin(x)}{\sqrt{2} }+\frac{cos(x)}{\sqrt{2} } ]..................(a)\\\\\ \frac{1}{\sqrt{2} } = cos(45) = sin(45)\\\\$

Using these result in equation a we get

f(x) = $\sqrt{2} [ cos(45)sin(x)+sin(45)cos(x)]\\\\= \sqrt{2} [sin(45+x)]..........(b)$

Now we know that for derivative with respect to dependent variable is positive for an increasing function

Differentiating b on both sides with respect to x we get

f '(x) = $f '(x)=\sqrt{2} \frac{dsin(45+x)}{dx}\\ \\f'(x)=\sqrt{2} cos(45+x)\\\\f'(x)>0=>\sqrt{2} cos(45+x)>0$

where x∈(0,2π)

we know that cox(x) > 0 for x∈[0,π/2]∪[3π/2,2π]

Thus for cos(π/4+x)>0 we should have

1) π/4 + x < π/2 => x<π/4 => x∈[0,π/4]

2) π/4 + x > 3π/2 => x > 5π/4 => x∈[5π/4,2π]

from conditions 1 and 2 we have x∈(0,π/4)∪(5π/4,2π)

Thus the function is decreasing in x∈(π/4,5π/4)

5 0

3 years ago