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kompoz [17]
3 years ago
7

Is x-3 a factor of the polynomial p(x)=2x4-9x3+15x2-22x+12 and for waht reason

Mathematics
2 answers:
Luden [163]3 years ago
5 0

Answer:

(x - 3) is a factor of polynomial function p(x).

Step-by-step explanation:

If (x - 3) is a factor of the polynomial function

p(x) = 2x^{4}-9x^{3}+15x^{2}-22x+12

Then x = 3 will be one of the zeros of this polynomial function and by plug-in the value of x, function p(x) will be zero.

p(3) = 2(3)^{4}-9(3)^{3}+15(3)^{2}-22(3)+12

      = 2×81 - 9×27 + 15×9 - 66 + 12

      = 162 - 243 + 135 - 66 + 12

      = 0

Therefore, (x - 3) is a factor of polynomial function p(x).

andre [41]3 years ago
3 0
Yes, (x - 3) is a factor of the given polynomial.

If (x - 3) was a factor of the polynomial, then 3 would be one of the zeros of the function. That means if you input 3 into the function, you will get an output of zero.

In this case, inputting 3 does produce 0. Therefore, it is a factor.
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8. If BD=BC, BD = 5x -26, BC = 2r + 1, and AC = 43, find AB.
charle [14.2K]

Answer:

24

Step-by-step explanation:

BD=DC

5x-26=2x+1

5x-2x=1+26

3x=27

x=9

BC=2x+1

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BC =19

so AB=AC-BC

AB=43-19

AB=24

8 0
2 years ago
You are buying a triple deck ice cream cone with mochamocha​, peachpeach​, and vanillavanilla as possible flavors. The flavors c
maw [93]
Roughly 24, but there's possibly like nine more. I got 24 without getting too confused
4 0
3 years ago
Can someone solve these two for me pls ill give brainliest
NISA [10]

Answer:

1.) -5

2.) -4

Step-by-step explanation:

For number 1, you sub in -2 for x.

2 multiplied by -2 is -4, minus 1 = -5.

For the second one, sub in 5 for x.

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6 0
2 years ago
5x – 6y = –29: ( __, 4)
Xelga [282]
Hola, qué tal tu día
7 0
3 years ago
Please help me find the area of each shaded segment and round the answer to the nearest tenth :)
Keith_Richards [23]
Hi there!

In order to solve, we need to use the formula for the area of a circle, and the angle given to find the area of the sector. Then, subtract the area of the triangle to find the area of the segment. We would use the equation : A = x/360 (pi * r^2) - 1/2(b * h). We need to plug in 90 for the angle measurement, 8 for the radius, and 8 for both the base and height. 

WORK:
A = 90/360 (pi * 64) - 1/2(64)
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Hope this helps!! :)
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