3 years ago

Use substitution method & show your work.y = x^2 + 3x - 14x + 1 = y

1 answer:

7 0

4x + 1 = x^2 + 3x - 1
4x = x^2 + 3x - 2
0 = x^2 -x - 2
0 = x^2 -x + 1 - 3
0 = (x - 1)^2 - 3
3 = (x - 1)^2
sqrt 3=(x-1) and (-(x-1))
x = 1+sqrt 3 and 1-sqrt 3
sqrt means square root

You might be interested in

7x+5/9 (Simplify your answer. Use integers or fractions for any numbers in the expression.)

Black_prince [1.1K]

nothing can be further simplify in this problem

5 0

2 years ago

URGENT !!! ANSWER NUMBER 7, right answer will get the brainlest!!!!

ra1l [238]

Answer:

Most likely wrong but i thinkkk C

Step-by-step explanation:

5 0

2 years ago

The elevation E, in meters, above sea level at which the boiling point of a certain liquid is t degrees Celsius is given by th

const2013 [10]

For T = 89.5 degrees C:
E(t) = 1100(90 - 89.5) + 520(90 - 89.5)^2= 1100(0.5) + 520(0.5)^2= 550 + 130= 680 m
For T = 90 degrees C:
E(t) = 1100(90 - 90) + 520(90 - 90)^2= 0 + 0= 0 m (meaning that boiling point is 90 degrees C at ground level)

3 0

3 years ago

The equation with one change and no solutions: 8x + 6 =

Lisa [10]

The answer is 2 ........

6 0

3 years ago

A pair of AirPods cost $120 at the store. A

timofeeve [1]

Answer:

20 is the correct answer