Answer:
A. The r²-value of the linear model is greater than 0.977
Step-by-step explanation:
A P E X
Answer:
If a system has at least one solution, it is said to be consistent. If a consistent system has exactly one solution, it is independent.
Step-by-step explanation:
Let, the cost of a belt = x
cost of a wallet = y
Then, system of equations would be:
x + y = 42
7x + 4y = 213
Multiply 1st equation by 4,
4x + 4y = 168
Substitute it from 2nd equation,
3x = 45
x = 15
Now, substitute it in 1st equation,
15 + y = 42
y = 42 - 15 = 27
In short, Belt costs $15 and wallet costs $27
Hope this helps!
Answer:
33
Step-by-step explanation:
2³=8
5²=25
8+25=33.
so, 2³+5²=33
B. 16.. because its in the middle