Which of the following relations represent a function? A. {(-1,-1),(0,0),(2,2),(5,5)}. B. None of these. C. {(0,3),(0,-3),(-3,0)
Cerrena [4.2K]
Answer:
A
Step-by-step explanation:
In a list of ordered pairs, a relation that is a function will not have any repeated x-values.
A -- a function (x-values are {-1, 0, 2, 5} with no repeats)
B -- irrelevant
C -- not a function (x-values are {0, 0, -3, 3} with 0 being repeated)
D -- not a function (x-values are {-2, -1, -2, 2} with -2 being repeated)
Answer:
50 cm²
Step-by-step explanation:
We know that PQRS is a paralleogram so we know that RS = PQ.
We also know that ΔPQT and ΔPRS has the same height . The the area is the same, from the area of that we can get 50 cm²
Answer:
the answer should be 8
Step-by-step explanation:
4^3/2^3
4^3= 64
2^3= 8
64/8= 8
Answer:
y=2x+1
Step-by-step explanation:
Input X=2 into the function, so y=2(2)+1, which is 5. This matches the table.
81 * 1 / 27^y = 9 ^2y+1
81 * 1 / 9^3y/2 = 9 ^ 2y+1
9^3y/2 * 9 ^ (2y+1) = 81
9 ^ ( 3y/2 + 2y + 1) = 81 = 9^2
3y/2 + 2y + 1 = 2
7y/2 = 2 -1 = 1
7y = 2
y = 2/7 answer