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crimeas [40]
3 years ago
11

Which of the following methods would be the easiest to use to solve x^2-11=0 A factoring B isolating the x^2 term and finding th

e square root of both sides C using the quadratic formula. D all 3 methods would be easy and effective
Mathematics
1 answer:
Marat540 [252]3 years ago
8 0
The answer is B. In this case when you isolate the variable it just takes 2 steps. The others require more steps and tedious calculation.
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What is the inverse of the function f(x) = x – 12?
igor_vitrenko [27]
F (x)= x+12 is the inverse of the function
7 0
3 years ago
Square of a binomial x^2+2x+1
garik1379 [7]
To put an equation into (x+c)^2, we need to see if the trinomial is a perfect square. 
General form of a trinomial: ax^2+bx+c
If c is a perfect square, for example (1)^2=1, 2^2=4, that's a good indicator that it's a perfect square trinomial. 
Here, it is, because 1 is a perfect square.
To ensure that it's a perfect square trinomial, let's look at b, which in this case is 2. 
It has to be double what c is.
2 is the double of 1, therefore this is a perfect square trinomial. 
Knowing this, we can easily put it into the form (x+c)^2.
And the answer is: (x+1)^2.
To do it the long way:
x^2+2x+1
Find 2 numbers that add to 2 and multiply to 1. 
They are both 1.
x^2+x+x+1
x(x+1)+1(x+1)
Gather like terms
(x+1)(x+1)
or (x+1)^2.
3 0
3 years ago
What is a y-intercept of the continuous function in the table?
Vadim26 [7]

Answer:

5=y-intercept

Step-by-step explanation:

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5 0
3 years ago
On a coordinate plane, a line is drawn from point J to point K. Point J is at (1, negative 10) and point K is at point (7, 2). W
Airida [17]

Answer:

5

Step-by-step explanation:

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4 0
3 years ago
An investigative question in your employee satisfaction study seeks to assess employee ""job involvement."" Create a measurement
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Answer:

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Step-by-step explanation:

6 0
3 years ago
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