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3 years ago

I need help with each one

Mathematics

1 answer:

pashok25 [27]3 years ago

7 0

If you get the app photomath it will help you with math problems

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Carissa bought a new pair of shoes that normally cost $50 for a sale price of $32.50 what was the percent of the discount

scoundrel [369]

The discount was 35%
to find that i did 32.5 / 50 and found 0.65 which means thats 32.5 is 65% of 50, but 17.5 was taken off and 17.5 is 35% of 50.

5 0

3 years ago

Find the slope of the line passing through the points (3, 4) and (8,-3).

Verizon [17]

Answer:

-1.4

Step-by-step explanation:

5 0

3 years ago

What is the SST for the data set (1,4), (2,6),(4,11)?

densk [106]

Answer: 26

Step-by-step explanation:

First Data: (4 - 7)^2

Second data: (6 - 7)^2

Third Data: (11 - 7)^2

So the SST is (4 - 7)^2 + (6- 7)^2 + (11 - 7)^2 = 9 + 1 + 16 = 26

Hope this helps! :)

5 0

3 years ago

Read 2 more answers

7. As you consider your decision, you think about how most cars lose value over time. If a fully loaded Volkswagen Beetle deprec

svet-max [94.6K]

11,949.9126..... by my calculator.

3 0

3 years ago

Solve 3x² + 4x = 2. (2 points)

uysha [10]

Answer:

Step-by-step explanation:

As it is a second order equation, it means that it has two possible answers and they are $x_1$ and $x_2$ .

The famous quadratic formula for solving any second order equation is the following:

$x_{1} = \frac{-b + \sqrt{b^2 - 4 ac}}{2a}\\x_{2}=\frac{-b - \sqrt{b^2 - 4 ac}}{2a}$

Where a is the coefficient of $x^2$ , b is the coefficient of x, and c is the free term. In other words,

$a = 3\\b=4\\c=-2$

as the equation should be in the following form:

$a x^2 + bx+c = 0$

Therefore the possible answer should be the following,

$\frac{-4 + \sqrt{4^2 - 4*3*(-2)}}{2*3}=\frac{-4 +\sqrt{16 + 24}}{6} =\frac{-4 + \sqrt{40}}{6}=\\ \frac{-4 + \sqrt{4*10}}{6} = \frac{-4 + 2\sqrt{10}}{6}$ $\frac{2*(-2 + \sqrt{10})}{2*3} = \frac{-2 + \sqrt{10}}{3}$

by dividing the numerator and denominator by 2, we can deduce the following,

6 0

2 years ago