3 years ago

What is 3k^2(-2k^2-4k+7)?

1 answer:

6 0

The answer is B., based on the distributive property (multiply coeffictients, add exponents, change signs because of the negative number being multiplied)

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3. Order the rational numbers from least to greatest: 0.5, 0, - 1.5, 1, -0.5, -1

harina [27]

Answer:

-1.5,-1,0,0.5,1 is the answer

8 0

3 years ago

Evaluate the expression when x=-2 and y=3 3x-4y

Illusion [34]

The expression re-written: 3(2) - 4(3)

First, we multiply (PEMDAS)

3 * 2 = 6

4 * 3 = 12

6 - 12 = -6

Answer: - 6

7 0

3 years ago

Manny bought a brand new car in 2012 for $28,750. If the car depreciates by 12% each year, write an exponential function to mode

patriot [66]

The exponential formula for this situtation will be given by:
f(x)=ae^(-bx)
where:
a=initial price
b=rate
x=time in years
hence the formula will be:
f(x)=28750e^(-0.12x)
thus the value of the car in 2018 will be:
x=2018-2012=6 years
thus
f(6)=28750e^(-0.12*6)
f(6)=$13,994.13

5 0

3 years ago

Identify the slope and y-intercept of each of the following lines. Then graph each line.

viktelen [127]

First rewrite the equation in slope intercept form

slope intercept form: y = mx + b [ where m is slope and b is y-intercept ]

$\rightarrow \sf 8y = -2x+32$