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ra1l [238]
3 years ago
12

Two roots of a 3-degree polynomial equation are 5 and -5. Which of the following cannot be the third root of the equation?

Mathematics
2 answers:
Serga [27]3 years ago
5 0
Hello,

5i or -5i since there would be at least 4 roots

Answer B and E
Kaylis [27]3 years ago
4 0

Answer:

5i or -5i since there would be at least 4 roots

Answer B and E

Step-by-step explanation:


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umka2103 [35]
1) put a bar over the last 4
2) put a bar over the last 3 numbers (198)
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4 0
3 years ago
The revenue function for a sporting goods company is given by R(x)=x⋅p(x) dollars where x is the number of units sold and p(x)=4
Zina [86]

The maximum revenue generated is $160000.

Given that, the revenue function for a sporting goods company is given by R(x) = x⋅p(x) dollars where x is the number of units sold and p(x) = 400−0.25x is the unit price. And we have to find the maximum revenue. Let's proceed to solve this question.

R(x) = x⋅p(x)

And,  p(x) = 400−0.25x

Put the value of p(x) in R(x), we get

R(x) = x(400−0.25x)

R(x) = 400x - 0.25x²

This is the equation for a parabola.  The maximum can be found at the vertex of the parabola using the formula:

x = -b/2a from the parabolic equation ax²+bx+c   where a = -0.25,  b = 400 for this case.

Now, calculating the value of x, we get

x = -(400)/2×-0.25

x = 400/0.5

x = 4000/5

x = 800

The value of x comes out to be 800. Now, we will be calculating the revenue at x = 800 and it will be the maximum one.

R(800) = 400x - 0.25x²

= 400×800 - 0.25(800)²

= 320000 - 160000

= 160000

Therefore, the maximum revenue generated is $160000.

Hence, $160000 is the required answer.

Learn more in depth about revenue function problems at brainly.com/question/25623677

#SPJ1

5 0
1 year ago
A computer repair technician charges $35 for each job plus $21 per hour of labor and 110% of the cost of parts. The total charge
Novay_Z [31]

Answer:

The cost of parts was $65.

Step-by-step explanation:

Let the cost of parts = x

35  + 21(3) + 1.10x = 169.50

98 + 1.10x = 169.50

71.50 = 1.10x

71.50/1.10 = 65

7 0
3 years ago
Which property justifies the following statement?<br> If x = 2, and y = 3x - 11, then y = 3.2 - 11.
irina [24]

Answer:

Transitive property

But it looks like substitution.

Step-by-step explanation:

3 0
3 years ago
Help please, i will mark brainliest
dmitriy555 [2]

Answer:

40

Step-by-step explanation:

We can see that at 1 minute there is 40 beats, at 2 minutes there is 80 beats, at 3 minutes there is 120 beats, at 4 minutes there is 160 beats and at 5 minutes there is 200 beats. If we divide each of the beats by its corresponding minute we will get 40

40 beats at 1 minute → 40 ÷ 1 = 40

80 beats at 2 minutes → 80 ÷ 2 = 40

120 beats at 3 minutes → 120 ÷ 3 = 40

160 beats at 4 minutes → 160 ÷ 4 = 40

200 beats at 5 minutes → 200 ÷ 5 = 40

3 0
3 years ago
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