MATHEMATICS HIGH SCHOOL

Which expression represents the factored form of 6x^2 - 13x - 5?a) (2x + 5) (3x - 1)
b) (2x- 5) (3x + 1)
c) (6x-5) (x + 1)
d) 6x + 1) (x - 5)

Answers

Answer 1
Answer:

For the quadratic trinomial ax^2+bx+c the following formula

ax^2+bx+c=a(x-x_1)(x-x_2), where x_1, x_2 are trinomial roots, holds.

1. For trinomial 6x^2 - 13x - 5 find the roots:

.

2. The factoring form is

6x^2-13x-5=6\left(x+(1)/(3)\right)\left(x-(5)/(2)\right) =(3x+1)(2x-5)

Answer: correct option is B.
Answer 2
Answer: to FL and add
multiply first terms and multiply last terms and add and see if we get the middle term
example
(x+2)(2x-3)=2x^2+x-6x
2*2x+x*-3=4x-3x=x=middle term so



a. (2x+5)(3x-1)
2x*-1+5*3x=-2x+15x=13x, no we want -13x

b. (2x-5)(3x+1)
2x*1+-5*3x=2x-15x=-13x correct



answer is B

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Answers

the dddee Mr DC HD d zar

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Answers

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Answers

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Answers

9514 1404 393

Answer:

  s = 53°

Step-by-step explanation:

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What is the mean of the data set? I got 177 when i added up the numbers but what would i divide 177 by?12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18

A.14.00

B.14.75

C.15.75

D.13.50

Answers

If you would like to know the mean of the data set, you can calculate this using the following steps:

The mean of the data set is the sum of all the data values divided by the number of these values.
  
12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18

12 + 17 + 16 + 10 + 20 + 13 + 14 + 14 + 12 + 12 + 19 + 18 = 177
the number of data values: 12
177 / 12 = 14.75

The correct result would be B. 14.75.

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Answers

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