Using it's concept, it is found that the probability that the special ball is chosen is given by:
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
The total number of outcomes is given by the combination of k balls from the set of n balls, given by:
One ball is special, hence the probability the special ball is chosen is given by:
More can be learned about probabilities at brainly.com/question/14398287
Answer:
Step-by-step explanation:
-4 > x / -7....multiply both sides by -7, and flip the sign
-4 * -7 < = x
28 < x....or x > 28
yes, they are both the same.
28 < x ....this is saying that 28 is less then x
x > 28....this is saying that x is greater then 28
so there both saying the same thing
Graph D is the answer to this question
Answer:
y = -3x + 7
Step-by-step explanation:
Points on the graph: (0, 7) and (3, -2)
Slope:
m=(y2-y1)/(x2-x1)
m=(-2-7)/(3-0)
m=(-9)/3
m = -3
Slope-intercept:
y - y1 = m(x - x1)
y - 7 = -3(x - 0)
y - 7 = -3x
y = -3x + 7
Answer:
2x^3 - x^2 - 3x + 2
x^4 - 2x^3 + 3x^2 - 4x +2
Step-by-step explanation:
Q13)
(x - 1)(2x^2 + x - 2)
First, distribute out the x in (x-1) to (2x^2 + x - 2)
x(2x^2)= 2x^3
x(x)= x^2
x(-2)= -2x
Next, distribute out the -1 in (x-1) to (2x^2 + x -2)
(-1)(2x^2)= -2x^2
(-1)(x)= -x
(-1)(-2)= 2
Now add up all these products:
2x^3 + x^2 - 2x -2x^2 - x +2
Collect like terms:
2x^3 + x^2 -2x^2 - 2x - x +2
Simplify by adding like terms to get final answer:
2x^3 - x^2 - 3x + 2
Q14)
Follow steps above to get the following answer
(x^2 + 2)(x^2 - 2x + 1)
= x^4 - 2x^3 + x^2 + 2x^2 - 4x + 2
= x^4 - 2x^3 + 3x^2 - 4x +2