Answer:
(x + 2)^2 - 11.
Step-by-step explanation:
f(x) = x^2 + 4x - 7
Now x^2 + 4x = (x + 2)^2 - 4 so we have:
f(x) = (x + 2)^2 - 4 - 7
f(x) = (x + 2)^2 - 11.
I'm not sure... I think it is 60 because 2*3=6 and 9*6=54 and when you add them together you get 60.
Answer:
1 to 0.99 cents
Step-by-step explanation:
Always look for the number one and compare it to the other number and that is usually the unit rate.
8x would represent multiplying 8(people) times x(ticket cost) But you don't know how much the tickets cost per person so that's why it's x.
8x + 20 = 76
76-20=56
56÷8=7
x equals 7
Given:
Number of red marbles = 5
Number of blue marbles = 4
Number of yellow marbles = 3
To find:
The probability of pulling a red marble, then pulling a blue marble, without replacement.
Solution:
Probability formula:

We have,
Number of red marbles = 5
Total number of marbles is:

Probability of getting a red marble is:

After selecting one red marble, the remaining number of marbles is 11 and the number of blue marbles is 3. So,

Now, the probability of pulling a red marble, then pulling a blue marble, without replacement is:




Therefore, the correct option is B.