The revenue, in dollars, of a company that makes toy cars can be modeled by the polynomial 3x2 + 4x – 60. The cost, in dollars, of producing the toy cars can be modeled by 3x2 – x + 200. The number of toy cars sold is represented by x.If the profit is the difference between the revenue and the cost, what expression represents the profit?
3x – 260
3x + 140
5x – 260
5x + 140
Answers
For this case we have the following quadratic functions:
Revenue:
Cost:
Then, we observe that the profit is given by the following mathematical relationship:
Substituting values we have:
Making the corresponding calculations we have:
Answer:
An expression that represents the profit is:
Answer:
5x – 260
i hope this helps you
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how much did they eat?.....................plz hurry up
Answers
Answer:
Hence, the amount of potatoes they ate is:
Step-by-step explanation:
A chef cooked seven kilograms of mashed potatoes for a dinner
party.
Now it is given that:
If the guests only ate three-quarters of the amount he cooked,
We have to find the amount they ate?
( Three-quarters is an amount that is three out of four equal parts of something )
i.e. the guest ate:
3/4 of 7 kg of mashed potatoes.
which is given by:
Hence, the amount of potatoes they ate is:
Answers
step by step:
the domain of a function is the values of x it can be
the range is the values of y it can be
domain:
range:
Answers
Cross Multiply
The answer is 585 miles
270%6= 45.
Now we multiply: 270x2=540
and we add 45 that equals an hour of driving.
540+45= 585
Now we got 13 hours of driving
Thuy drives 585 miles in 13 hours.
Answers
Answer:
-0.02
Step-by-step explanation:
To find the mean (average) of a set of numbers, you add up all the numbers and then divide by the total count of numbers. In this case, you have four numbers: -0.05, 0.09, -0.04, and -0.08.
Mean = (Sum of the numbers) / (Total count of numbers)
Mean = (-0.05 + 0.09 - 0.04 - 0.08) / 4
Now, calculate the sum of these numbers:
Mean = (-0.05 + 0.09 - 0.04 - 0.08) = -0.08
Now, divide the sum by the total count of numbers, which is 4:
Mean = -0.08 / 4 = -0.02
So, the mean of the numbers -0.05, 0.09, -0.04, and -0.08 is -0.02.
Answers
Answers
Multiply out:
x² - 6x = 4x + 24
x² - 6x - 4x - 24 = 0
x² - 10x - 24 = 0
This is a quadratic equation
x² - 10x - 24 = 0 Divide through by 2
Multiply first and last coefficients: 1*-24 = -24
We look for two numbers that multiply to give -24, and add to give -10
Those two numbers are -12 and 2.
Check: -12*2 = -24 2 + -12 = -10
We replace the middle term of -10x in the quadratic expression with 2x -12x
x² - 10x - 24 = 0
x² + 2x - 12x - 24 = 0
x(x + 2) - 12(x + 2) = 0
(x + 2)(x - 12) = 0
x + 2 = 0 or x - 12 = 0
x = 0 -2 x = 0 + 12
x = -2 x = 12
The solutions are x = -2 or 12
D= 100-4×1(-24)
D=100+96
D=196
X1,2= 10 plus minus 14 : 2 <=>X1=10-14:2=-2 and X2= 10+14:2= 2