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2 years ago

Write an equation of a line perpendicular to x = -7 and passes through the point (4,9).

Mathematics

1 answer:

AlladinOne [14]2 years ago

6 0

Answer:

y = 9

Step-by-step explanation:

The line x = -7 is a vertical line, so the perpendicular line will be horizontal.

Horizontal lines have a slope of 0.

Using this slope and the point given, plug them into y = mx + b to solve for b and create the equation

y = mx + b

9 = 0(4) + b

9 = b

Plug this and the slope into the equation:

y = mx + b

y = 0x + b

y = 9

So, y = 9 is the equation

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3 years ago

What is the present value of $3,000 per year for 9 years discounted back to the present at 10 percent?

Studentka2010 [4]

Answer:

$17,277.07

Step-by-step explanation:

Present value of annuity is the present worth of cash flow that is to be received in the future, if future value is known, rate of interest is r and time is n then PV of annuity is

PV of annuity = $\frac{P[1-(1+r)^{-n}]}{r}$

= $\frac{3000[1-(1+0.10)^{-9}]}{0.10}$

= $\frac{3000[1-(1.10)^{-9}]}{0.10}$

= $\frac{3000[1-0.4240976184]}{0.10}$

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

Find the 44th term in the following<br> arithmetic sequence :<br> 2, 3, 4, 5, ...

Aleonysh [2.5K]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

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Answer:

Step-by-step explanation:

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