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Marrrta [24]
3 years ago
15

Sis In order to identify the zeros of the function, a student factored the cubic function ()=−−f of , open x close , equals , x

cubed , minus 3 , x squared , minus 10 x as shown. Describe and correct the error the student made
Mathematics
1 answer:
creativ13 [48]3 years ago
7 0

Answer:

f(x)=x(x-5)(x+2)

Step-by-step explanation:

Since the steps of the factorization of the polynomial f(x) is not given, I will proceed to give the correct factorization of f(x).

f(x)=x³-3x²-10x

First, we factor out x since it is a common term.

f(x)=x(x²-3x-10)

Next, we factorize the quadratic expression x²-3x-10.

f(x)=x(x²-5x+2x-10)

f(x)=x(x(x-5)+2(x-5))

f(x)=x(x-5)(x+2)

The correct factorization of the polynomial f(x)=x³-3x²-10x is: f(x)=x(x-5)(x+2)

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4 years ago
Which expression is equivalent to (^5sqrt3^2)^1/3
11Alexandr11 [23.1K]

Answer:

3^2/15

Step-by-step explanation:

(^5sqrt3^2)^1/3

(3^2/5)^1/3

multiply the powers

3^2/5*1/3

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6 0
4 years ago
If your annual salary is 47,980 what is your biweekly pay
bogdanovich [222]
Annual salary = 47,980
If you are paid biweekly, you are paid 26 times per year, so

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5 0
3 years ago
Two semicircles are placed in a rectangle, as shown below. The length of the rectangle is 48. And do not round your answer. Be s
ANTONII [103]

Answer and Step-by-step explanation:

Firstly, we should note that the rectangle given is a square. This is because, the diameter of the semicircle is the same horizontally and vertically

Since the length of the rectangle is 48, it means the radius of each semi circle is 24.

The area of one semicircle will be:

0.5πr²

Where r = 24 and π = 3.14

0.5 x 3.14 x 24 = 37.68 square units

Since we have two semicircles, then the area of both will be:

37.68 x 2 = 75.36 square units.

To find the area shaded portion. Since I cannot see the diagram, there are two possibilities. If the shaded potion is just the two semicircles, then the area is 75.36 square units. But if the shaded portion is what ever remains after taking out the semicircles, then the area would be:

48² – 75.36 = 2133.64 square units.

6 0
3 years ago
Ln(x)=1.5 <br> solve for x<br> ...?
In-s [12.5K]
It is a very simple problem, if you know the way for representing it in a proper manner. There are basically no complications associated with this problem.

<span>Ln(x) = 1.5 
</span>Then
x = e^1.5
   = 4.48
I hope the procedure is simple enough for you to understand. I also hope that this is the answer that you were looking for and the answer has actually come to your desired help.
4 0
3 years ago
Read 2 more answers
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