All categories

3 years ago

Need Help

Mathematics

1 answer:

masya89 [10]3 years ago

6 0

So you subtract $22.89 from $54.73 to get a total of $31.84 and that’s how much the customer paid.

You might be interested in

Need help ASAP giving 25 points

Ket [755]

Answer:

42 inch

Step-by-step explanation:

5 0

3 years ago

Consider the number line of x > 28 which numbers are solutions of the inequality

Gelneren [198K]

Answer:

D and E because they are bigger than 28. C is 28 but there isn't a greater OR EQUAL sign next to it

8 0

3 years ago

Please answer this question now

-Dominant- [34]

Answer:

A≈422.37

You use the equation A=πr(r+h2+r2) to find the surface area of a cone

3 0

3 years ago

Read 2 more answers

What is the percent increase from 250 to 900?

brilliants [131]

900 - 250 = 650

650 / 250 = 13 / 3 = 2.6 = 260%

5 0

3 years ago

Read 2 more answers

2. The path of a high diver is given by y = + (2x2 – 9x – 56), where y is the height of the diver

timofeeve [1]

Answer:

The diver will be 8 feet from the end of the board when he hits the water.

Step-by-step explanation:

The diver hits the water when y = 0.

To find the distance, we have to find the values of x when y = 0.

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = (x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this problem, we have that:

$y = 2x^{2} - 9x - 56$

$2x^{2} - 9x - 56 = 0$

$a = 2, b = -9, c = -56$

Then

$\bigtriangleup = b^{2} - 4ac = (-9)^{2} - 4*2(-56) = 529$

$x_{1} = \frac{-(-9) + \sqrt{529}}{2*2} = 8$

$x_{2} = \frac{-(-9) - \sqrt{529}}{2*2} = -3.5$

It is a horizontal distance, so the answer is a positive value.

The diver will be 8 feet from the end of the board when he hits the water.

7 0

3 years ago