Answer:
(x, y) = (-4, -15)
Step-by-step explanation:
Perhaps you want the solution to ...
y = 3/4x -12
y = -4x -31
Equating the two expressions for y gives ...
3/4x -12 = -4x -31
3/4x = -4x -19 . . . . . add 12
3x = -16x -76 . . . . . multiply by 4
19x = -76 . . . . . . . . . add 16x
x = -76/19 = -4 . . . . divide by 19
y = (3/4)(-4) -12 = -15 . . . . use the first equation to find y
The solution to this system of equations is ...
(x, y) = (-4, -15)
The anwser is zero
You see, 5 to the exponent of 0 is 5 0 times then if you multiply 5 to the explnent of 1 by zero the anwser is zero because zero times 5 is zero
The answer is 18. Substitute in the 10 for x and solve for y. Answer is B. Hope this helps!!!
Answer:
0.9488
Step-by-step explanation:
We have a binomial experiment with n = 77 independent trials, in each trial, we can have a success or a fail, the probability of success is p = 1/3 (q = 2/3) because each question has three answer choices and only one is correct, besides the person decides on answers by rolling a fair die. Therefore, the probability that the person gets exactly x correct answers is given by
and the probability that the person gets fewer than 33 correct answers is given by = 0.9488