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3 years ago

A car dealership marks up the price of a car 4%. There is a 3% tax on

Mathematics

1 answer:

kvasek [131]3 years ago

4 0

182975 is the answer❤️❤️❤️❤️❤️

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The slope of the line below is - Write a point-slope equation of the line

Mumz [18]

Answer:

$y +9 = -4(x - 4)$

Step-by-step explanation:

Given

$m = -4$ --- slope

$(x_1,y_1) = (4,-9)$ --- point

See attachment for complete question

Required

Determine the line equation

This is calculated as follows:

$y - y_1 = m(x - x_1)$

Substitute values for m, x1 and y1

$y - (-9) = -4(x - 4)$

Simplify the expression on the left-hand side:

$y +9 = -4(x - 4)$

4 0

3 years ago

Plz help :D 7th grade math

Mashutka [201]

Answer:

The answer is 8.15

Step-by-step explanation:

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3 years ago

Read 2 more answers

Abby scored 87, 86, 93, and 89 on her first four history quizzes. What score does Abby need to get on her fifth quiz to have an

Delicious77 [7]

Answer:

Step-by-step explanation:

The average of a data set is just all the numbers added up divided by the amount of numbers.

If we already have 4 pieces of data and we're looking for one more, we have 5 data pieces.

This means that the sum of all of the numbers in the data set will be $91\cdot5=455$ if the mean is 91.

We can find the missing value by adding up what we know and subtracting from 455.

$87+86+93+89=355\\\\455-355=100$

So Abby needs a 100% on her fifth history quiz to have an average of 91 on all her quizzes.

Hope this helped!

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3 years ago

Can someone help me answer

Ilya [14]

Answer: she should by 9 bottles of juice

Step-by-step explanation:

because there's 2 L per one bottle, 2L (X bottles) = 18L, X = 9

3 0

3 years ago

Read 2 more answers

Solving quadratic equations with complex solutions x2 + 4x + 8 = 0.

Daniel [21]

Answer:

$\large\boxed{x=-2\pm2i}$

Step-by-step explanation:

$x^2+4x+8=0\qquad\text{subtract 8 from both sides}\\\\x^2+4x+8-8=0-8\\\\x^2+2(x)(2)=-8\qquad\text{add}\ 2^2\ \text{to both sides}\\\\x^2+2(x)(2)+2^2=-8+2^2\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\(x+2)^2=-8+4\\\\(x+2)^2=-4\iff x+2=\pm\sqrt{-4}\\\\x+2=\pm\sqrt{(4)(-1)}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\x+2=\pm\sqrt4\cdot\sqrt{-1}\qquad\text{use}\ \sqrt{-1}=i\\\\x+2=\pm2\cdot i\qquad\text{subtract 2 from both sides}\\\\x=-2\pm2i$

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3 years ago