If we substitute 10 for t we get the height of the balloon after being in the air 10 minutes
h(10) = 210 - 15(10) = 210 - 150 = 60
Answer:
The giraffe will be 2 inches
Step-by-step explanation:
If we know that if the scale is 1/2 inch to 5 feet we simply just have to divide the height of the giraffe by 5 feet and then multiply it by 1/2 inches. So we do...
20feet / 5 feet x 1/2 inches = 4 x 1/2inches = 2 inches
Answer:
C. Both x is a function of y and y is a function of x
Step-by-step explanation:
A <u>function</u> is a relationship which assigns to each input (from the domain) value, a unique output (from the range).
y is a function of x means x is from domain, y is from range
x is a function of y means y is from domain, x is from range
1. Given
y is a function of x because for each x there is exactly one y corresponding to this x.
2. Rewrite expressing x in terms of y:
x is a function of y because for each y there is exactly one x corresponding to this x.
Answer:
it's 39 i think. .... ....... ......
Answer:
Step-by-step explanation:
x - 2y = 14
x + 3y = 9
subtract the first equation from the second to eliminate the x terms:
x + 3y = 9
-x + 2y = -14
-----------------
5y = -5
y = -1
x - 2(-1) = 14
x = 12
:::::
y = 2x
5x - y = 9
Substitute 2x for y in the second equation?:
5x - 2x = 9
3x = 9
x = 3
y = 6