9514 1404 393
Answer:
no solution
Step-by-step explanation:
Adding the two equations gives you ...
(-7x -4y) +(7x +4y) = (11) +(20)
0 = 31 . . . . . . false
No values of the variables will make this equation true. There is no solution.
Let x equal the number of books bought.
45 = 3x - 6
(This is the answer because $45 is the total price, each book is $3, and $6 is discounted from the actual price.)
Probability is the likelihood or chance of an event occurring. For example, the probability of flipping a coin and it being heads is ½, because there is 1 way of getting a head and the total number of possible outcomes is 2 (a head or tail).
Answer:
4
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
The max/ min of the function is the value of k
f(x) = (x - 2)² + 4 ← is in vertex form
with (h, k) = (2, 4 ) → k = 4
Thus minimum occurs at 4
