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3 years ago

15

Write an equation in slope-intercept form for the line that passes through the given point and is perpendicular to the given lin

e.
(5, −1); y = 4x − 7

Question #18

1 answer:

mart [117]3 years ago

8 0

Y=-1/4x-19 is the correct equation

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Suppose y=f(x)+k. what effect does k have on the parent function?

Aleksandr [31]

It moves it up and down

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3 years ago

What are the zeros of the function <br> f(x)= x^2+7x−18?<br> <br> Enter your answers in the boxes.

olga55 [171]

The zeros of the function are x=2,-9

5 0

3 years ago

Please help me get this easy maths question I’m mentally unwell

marshall27 [118]

Speed = distance / time

Speed = ?
Distance = 350km
Time = 5 hours

350km / 5hours = 70

He averages 70km/h

8 0

3 years ago

I’ll award you brainliest if you answer This question

guajiro [1.7K]

Answer:

$2353 at 12.5% and $7647 at 8.25%

Step-by-step explanation:

I'll say a is the amount he invested in one market, and b is the amount in the other.

a + b = 10000, or b = 10000 - a

multiplying the investments with the percentages and adding them together will give the total earned interest.

(a × 0.125) + (b × 0.0825) = 925

0.125a + 0.0825b = 925

Use substitution to solve for a.

0.125a + 0.0825(10000 - a) = 925

0.125 a + 825 - 0.0825a = 925

0.0425a = 100

a = 2352.94

Use substitution to find b

b = 10000 - 2352.94

b = 7647.06

The questions are to the nearest dollar so round a and b.

$2353 and $7647

6 0

3 years ago

One maid can clean the house four times faster than another. Working together they can clean the entire house in 4 hours. How lo

stich3 [128]

<u>5 hours</u><u> long would it take the </u><u>faster </u><u>maid cleaning alone.</u>

What is a linear equation in math?

A linear equation only has one or two variables.
No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction.
When you find pairs of values that make a linear equation true and plot those pairs on a coordinate grid, all of the points lie on the same line.

Suppose, time taken by faster maid be x , hours.

So, time taken by slower maid ,

$x_{2} = 4x_{1}$ ( 4 time faster maid )

Now, time taken by both of the made together is given by ,

$( \frac{x_{1}x_{2} }{x_{1} + x_{2} } )$

$\frac{x_{1}(4x_{1} ) }{x_{1} + 4x_{1} } = 4 hours$

$\frac{4x_{1} }{5} = 4 hours$

$x_{1} = 5 hours$ which is the time required by faster maid.

Learn more about linear equation

brainly.com/question/12974594

#SPJ4

8 0

1 year ago