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3 years ago

Write the equation of the line that is perpendicular to the line 3x + y = 7 and passes through the point (6, -1).

1 answer:

5 0

Line:
3x+y=7
y=-3x+7

Slope of Perpendicular Line: 1/3x

For the perpendicular line to contain point (6,-1) the y-intercept would be (0,1), thus the equation of the line would be y=1/3x+1

y=1/3x+1

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The annual rate of depreciation, x, on a car that was purchased for $9,000 and is worth $4,500 after 5 years can be found using

Zolol [24]

Answer:

Step-by-step explanation:

We know that exponential formula of depreciation

$A=P(1-x)^t$

where

P is the initial amount

x is the interest rate

A is the amount after t years

we are given

The annual rate of depreciation, x, on a car that was purchased for $9,000

so, P=9000

we can plug value it

$A=9000(1-x)^t$

we are given

when x=5 , A=4500

so, we can plug it and solve for x

$4500=9000(1-x)^5$

$\frac{9000\left(1-x\right)^5}{9000}=\frac{4500}{9000}$

$\left(1-x\right)^5=\frac{1}{2}$

$x=-\left(\frac{1}{2}\right)^{\frac{1}{5}}+1$

$x=0.12945$

so, interest rate is 13%

now, we can plug x

and we get

$A=9000(1-0.13)^t$

$A=9000(87)^t$

Graph:

6 0

3 years ago

Read 2 more answers

Sheila eats 3/4 of a bag of baby carrots each week. How many bags of baby carrots does she eat in 6 weeks?

Katyanochek1 [597]

Multiply 6 by 3/4:
$\frac{3}{4} \times6= \frac{3}{2}\times3=\frac{9}{2}$

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3 years ago

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Simplify 3^2/3.3^1/5

san4es73 [151]

ANSWER:

$\frac{1}{5} \\$

EXPLANATION:

$\frac{ \frac{{3}^{2}}{3 \times{3}^{1}}}{5} = \\$

$\frac{ \frac{9}{3 \times 3} }{5} = \\$

$\frac{ \frac{9}{9} }{5} = \\$

$\frac{1}{5} \\$

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3 years ago

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Greeley [361]

Answer:

The y-value (output) is equal to 1

Step-by-step explanation:

f(x) = 1

f(x) takes the place of y, so this could be rewritten as

y = 1

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3 years ago

List the first four terms of the geometric sequence.

luda_lava [24]

Answer:

you dont have to say nothing

Step-by-step explanation:

your dum anyways u cant even do nothing right u just on brainly to chet cant do school work and that u are going to fail so sad

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3 years ago