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-Dominant- [34]
3 years ago
10

What is the explicit rule that can be used to find the number of homes sold in the nth month of the year? (@musiclover pleasee h

elp)

Mathematics
1 answer:
tresset_1 [31]3 years ago
4 0
8,12,16
Each following number is 4 more than previous, so it is arithmetic sequence.
a(1)=8,
d=4
a(n)=a(1)+d(n-1)
a(n)=8+4(n-1)=8+4n-4=4+4n
a(n)=4n +4
Correct answer is A.
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PLEASE HELP!!!! 20 POINTS!!
GenaCL600 [577]
Sit tight, this is gonna be long!! =P

Also, for this answer, I'm assuming that the 'expressway' mentioned in your question is the top horizontal line. (In fact, that must be the expressway, since there would be no other way to solve the problem)

Okay, let's get started.
For starters, GY = 16 ft. That much is given to us in the question. GY's equivalent is BX, which is 10 ft. When the angles are mirrored like they are across the 'expressway' in this problem, they do not change, so we only need to put the dimensions to scale. If we divide 10 / 16, we see that the scale-down factor is .625, or 62.5%. With this information, we can find the length of XW.

How, you ask?

Well, let me tell you.

Again, when the angles are mirrored like this, they do not change. We can see that the 90 degree angle also does not change. The length of YZ is 20 ft. To find WX, we simply need to multiply YZ by our scaling factor of 62.5%. Doing so will give us our answer of 12.5 ft.

The expressway is 12.5 feet from point W.

I hope that helped, and I _really_ hope I did that right! =P
5 0
3 years ago
The graph of f passes through left parenthesis negative 4 comma 3 right parenthesis(−4,3) and is perpendicular to the line that
shusha [124]

Answer:

The answer to your question is y = -11/2x - 19

Step-by-step explanation:

Data

Point (-4, 3)

⊥ to the line x- intercept of 22 and y-intercept of -4.

Process

1.- Find the equation of the perpendicular line

This line has passes through the points  (22, 0) and (0, -4)

Slope = \frac{-4 - 0}{0 - 22} = \frac{-4}{-22} = \frac{2}{11}

2.- Find the slope of the new equation

Slope = \frac{-11}{2}    because the lines are perpendicular

3.- Find the equation of the new line

            y - 3 = -11/2 (x + 4)

            y - 3 = -11/2x - 44/2

            y - 3 = -11/2 x - 22

            y = -11/2 x - 22 + 3

            y = -11/2x - 19

See the graph below

4 0
3 years ago
Im dumb and need help​
ladessa [460]

Answer:

i thought this was a meme bro

Step-by-step explanation:

4 0
3 years ago
Find the quotient of these complex numbers.<br> (7 - 8i)/(4-5i) =
ololo11 [35]

Answer:68/41 + 3/41 i

Step-by-step explanation:

3 0
3 years ago
Ms. Robinson has $75 in her bank account and is depositing $15
Leno4ka [110]

Answer:

It will take 6 weeks

Step-by-step explanation:

Ms. Robinson: 75+15(6)=$160

Ms. LaSpina: 225-60 =$160

Therefore both will take 6 weeks

6 0
3 years ago
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