I need help

I need help

I need help with problem.

8n2 + 4n - 16 = -n2

You drink a beverage with 84mg of caffeine. Each hour, in your system decreases by about 8%. How long until you have 10mg of caffeine?

Savannah buys a car 30,000, if a car depreciates at an average of 17% per year, how much will the care be worth after 6 years?

Your cell phone company charges $0.12 per megabytes of data with a flat fee of $20. Your friend's company charges $0.35 per megabytes with no flat fee. If you and your friend paid the same amount...

Karla bough 6 books for a total of $154. Math books cost $27 and English books cost $23.

this questions stumped me.

-16t2+76t+5=12t+5

12x2+8x=0

Nuclear energy derived from radioactive isotopes can be used to supply power to space vehicles. The output of the power supply for a power plant is given by the function defined by y = 80e-0.00125t,...

What is the x-intercept for the function -12x - y + 7z = 96? Type your answer as a point, (x,y,z), Please help I keep getting fractions for the points! Thank you in advance.

1,11,21,1112,3112,211213,312213.

a third or fourth degree polynomial with zeros of +\- 2/3

Graph point P(-2,-4,1) using guidelines. Use guidelines to make it clear that you understand how to locate the point if you were moving in 3D space. Be careful: Look at the 3 axes and make certain...

Graph the system of constraints: x≤5, y≤(1/5)x + 7, x≥0, y≥0. Find all vertices. Evaluate the objective function at each vertex to find the maximum value: P = 6x + 7y - 2. For your answer,...

What is the x-intercept for the function -12x - y + 7z = 96? Type your answer as a point, (x,y,z)

Is x = 8 a function and why or why not

Suppose you paddle a row boat at a steady speed of 4 miles per hour. You go 6 miles downstream and then 6 miles upstream to get to where you started. The trip takes 4 hours. What is the speed of the...

Hello, I'm having a little trouble solving this problem: Raul works for Norwalk Parking Authority and is studying the parking rates for short term parking (up to 24 hours) in a new parking...

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