-2x(x-3) = -11
-2x(x) -2x(-3) = -11
-2x² + 6x = - 11
-2x² + 6x + 11 = 0
Let us use the quadratic formula in solving for the value of x.
-2x² + 6x + 11 = 0
a = -2 ; b = 6 ; c = 11
x = (-b <u>+</u> √b² -4ac) ÷ 2a
x = (-6 + √6² - 4(-2)(11)) ÷ 2(-2)
x = (-6 + √36 + 88) ÷ -4
x = (-6 + √124) ÷ -4
x = (-6 + 11.14) ÷ -4
x = 5.14 ÷ -4
x = -1.285 or -1.29
x = (-6 - 11.14) ÷ -4
x = -17.14 ÷ -4
x = 4.285 or 4.29
42+4=46
46+36=82
That’s the answer
I am not sure but I think it's B and D
ANSWER
0.0952
EXPLANATION
We have that Stephen surveyed 21 of his classmates and obtained the data in the table given.
To find the probability for which a randomly selected classmate has 3 credit cards in their wallet, we have to divide the number of people that had 3 credit cards in their wallet by the total number of people surveyed.
From the frequency table, we have that only 2 classmates had 3 credit cards in their wallets.
Therefore:
That is the answer.
Answer:
3
Step-by-step explanation:
its 3 because the line goes through 3 on x axis of the graph