MATHEMATICS MIDDLE SCHOOL

3x+2y-2x+2=3x-2x+2y+2

Answers

Answer 1
Answer: Easy. Follow my steps:
Combine Like terms


Then, add-2 to both sides.


Then divide.

Answer: x=0
Answer 2
Answer: 1x+2y+2=1x+2y+2
And your answers is all real numbers

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MIDDLE SCHOOL

The rational roots of a polynomial function f(x) can be written in the form p/q, where p is a factor of the leading coefficient of the polynomial and q is a factor of the constant term. A true
B false

Answers

Answer: A

Step-by-step explanation:

HIGH SCHOOL

A stick is broken into two pieces, at a uniformly random break point. Find the CDF and average of the length of the longer piece.

Answers

Answer:

P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1

Step-by-step explanation:

let assume that stick has length 1.Random variable L that make length of a longer piece and random variable U that mark point .See that L < l means that

U≤ l and 1-U ≤l

P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1

this means 1-l≤U≤l

so we have

if we have L  [1/2,1]

then apply the formula we have E(L)=3/4

MIDDLE SCHOOL

What are the zeros of f(x) = (x − 7)(x − 3)(x − 2)? Question 3 options: 7, −3, 2 7, −3, �2 7, 3, 2 7, 3, −2

Answers

Answer:

7, 3, and 2

Step-by-step explanation:

to get zeros, you need to multioly multiply something by 0. That means that one of the 3 parts has to be 0. Either x-7 = 0 or x-3 or x-2. set each equal to 0 and solve to get x = something. those answers are zeros and are 7, 3, and 2

Answer:

C

Step-by-step explanation:

7,3, and 2

HIGH SCHOOL

What is the solution set of (x - 2)(x - 3) = 2?

a. {1, 4}
b. {2, 3}
c. {4, 5}

Answers

Step One
Remove the brackets. Use Foil
F: x^2
O: -3x
I: -2x
L:(-2)(-3) = 6

What you have now is
x^2 - 3x - 2x + 6 = 2

Step Two
Combine like terms.
x^2 - 5x + 6 = 2

Step Three
Subtract 2 from both sides.
x^2 - 5x + 6 - 2 = 0
x^2 - 5x + 4 = 0

Step 4
Factor
(x - 4)(x - 1) = 0

Step 5
Find the zeros.
x - 4 = 0
x = 4

x -1 = 0
x = 1

Solution Set
(1,4)
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