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andrew-mc [135]
2 years ago
14

Question 2 Determine if (x-3) is a factor to the polynomial P(x) = 2x³ +5x²-28x - 15. (3 marks)​

Mathematics
1 answer:
tangare [24]2 years ago
3 0

Answer:

(x - 3) is a factor of P(x)

Step-by-step explanation:

if (x - 3) is a factor of P(x) then P(3) = 0

P(3) = 2(3)³ + 5(3)² - 28(3) - 15

      = 2(27) + 5(9) - 84 - 15

      = 54 + 45 - 99

      = 99 - 99

      = 0

since P(3) = 0 then (x - 3) is a factor of P(x)

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Katyanochek1 [597]

Answer: m = 0

Step-by-step explanation: To solve this problem, we don't even have to use our slope formula. It's important to understand that when we have the same <em>y</em> coordinate in our first ordered pair and our second ordered pair, this means that the line will be flat or horizontal.

When a line is horizontal, it means the line has a slope of zero.

We use the variable <em>m</em> to represent slope.

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4 0
3 years ago
Simplify 8(7x – 1) + 4(x + 5).
Elina [12.6K]

8(7x-1)+4(x+5)

multiply; 8  x  7=

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reorder the terms;

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4 0
3 years ago
Read 2 more answers
Erin has $45,688 in sales. If her commission rate Is 2.9% , what is the amount of her commission?
posledela

Answer:

The amount of her commission is $1,324.952

Step-by-step explanation:

1. You have the following information given in the problem above:

- Erin has $45,688 in sales.

- Erin's commission rate is 2.9% (0.029).

2. Therefore, to solve this exercise you must multiply the commission rate by her sales, as following:

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3 0
3 years ago
Quadrilateral ABCD is inscribed in this circle. What is the measure of angle c?
alexandr402 [8]
3x+x+20 = 180
4x = 180-20
4x = 160
x = 40

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40+20+3×40+2×40+38+C=360
40+20+120+80+38+C=360
298+C=360
C=360-298
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20% Because $18.00 - $14.40 = $3.60
3.6/18 = 0.2 ---> 20%
7 0
3 years ago
Read 2 more answers
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