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3 years ago

How do you graph m=250-25w

1 answer:

3 0

Put the first point on the m axis (vertical) at (0,250)

Then the second point at (1,225) then draw a line through both points

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Jason helped his dad put plastic and aluminum items into the recycling container. The container is a large cube with a length, w

igor_vitrenko [27]

Answer:

its 216 cubic feet.

Step-by-step explanation:

6x6x6 is 216

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3 years ago

Help!! Would the answer be c??

Westkost [7]

The answer is a. jksksvw

4 0

3 years ago

Ydhdhdgshshsysyhsjdudhdndhdhdbdhdydbwjhswnjshdd

SVETLANKA909090 [29]

Answer:

ty to the points :>

Step-by-step explanation:

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3 years ago

Read 2 more answers

2. Carl needs 15 hours longer than Jennifer to paint a room. If they work together, they can complete the job in 4 hours. Explai

nasty-shy [4]

Answer:

Jennifer would complete the job on her own in 5 hours.

Step-by-step explanation:

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 $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

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

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

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

Rates

The together rate is the sum of their separates rate.

We have that:

Jennifer takes x hours to complete the job on her own, so her rate is 1/x.

Carl needs 15 hours longer than Jennifer, that is, 15 + x hours, so his rate is 1/(15+x).

The together rate is 1/4. So

$\frac{1}{4} = \frac{1}{x} + \frac{1}{15+x}$

$\frac{1}{4} = \frac{15 + x + x}{x(15+x)}$

$\frac{1}{4} = \frac{15 + 2x}{x(15+x)}$

Applying cross multiplication.

$x^2 + 15x = 4(15 + 2x)$

$x^2 + 15x = 60 + 8x$

$x^2 + 7x - 60 = 0$

Quadratic equation with $a = 1, b = 7, c = -60$ . So

$\Delta = 7^{2} - 4*1*60 = 289$

$x_{1} = \frac{-7 + \sqrt{289}}{2} = 5$

$x_{2} = \frac{-7 - \sqrt{289}}{2} = -12$

Since the time to complete the job has to be a positive value.

Jennifer would complete the job on her own in 5 hours.

4 0

2 years ago

What equation results from completing the square and then factoring? x^2+24x=33

Nezavi [6.7K]

Answer:

Its C but the way I got is too small so I cant really give explanation

7 0

3 years ago