3 years ago

What is x squared plus six x minus twenty seven =0

1 answer:

8 0

$x^2+6x-27=0\\\\x^2-3x+9x-27=0\\\\x\big(x-3\big)+9\big(x-3\big)=0\\\\\big(x+9\big)\big(x-3\big)=0\\\\\\x+9=0\qquad\vee\qquad x-3=0\\\\\boxed{x=-9\qquad\vee\qquad x=3}$

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I have this problem in Algebra that I cannot figure out :(

elena-14-01-66 [18.8K]

The answer is -4

Solution:

f(x) = 3x - 7
g(x) = 2x^2 - 3x + 1

(fog)(0)

= f(2(0)^2 - 3(0) + 1)
= f(2x^2 - 3x + 1)
= f(1)

= 3x - 7
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8 0

2 years ago

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Kisachek [45]

D.68

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2 years ago

For an employee training, the employee to instructor ratio is 24 to 2. If there are 26 instructors for the training, how many em

denpristay [2]

Answer:

312 employees participated in the training

Step-by-step explanation:

Given;

employee to instructor ratio is 24 to 2

there are 26 instructors for the training

let the total number of instructors be I = 26

let the total number of employees be e = ?