Answer:
Y intercept is the value of y when x is equaled 0.
Step-by-step explanation:
Slope intercept form is
y = mx + b
In this equation, b is the y intercept.
Answer:
A(t) = π(8t)²
Step-by-step explanation:
Radius of a circular wave increases by 8 cm each second.
Every second radius of circular wave so the sequence of increase in radius will be,
8, 16, 24, 32.........(8t)
Here 't' = time
Since, area of a circle = πr²
Therefore, area of the circular wave after 't' seconds since the wave begins,
A(t) = π(8t)²
Answer: its C
Step-by-step explanation:
Answer:
...
Step-by-step explanation:
di = 2.5 -( - 1.5) = 4
radius = di/2 = 2
c(x, y) =( - 0.5 , 2.5-0.5) =(-0.5 , 0.5)
Robert is a boy, so you only need the formula for a boy’s predicted height.
father’s height=x
fathers height=180
so, x=180
mother’s height=y
mother’s height=160
so, y=160
plug in x=180 and y=160 into the formula.
0.4(x+y)+42
0.4(180+160)+42
use GEMDAS to simplify.
G(Groupings)
0.4(180+160)+42
0.4(340)+42
M(Multiplication)
0.4(340)+42
136+42
A(Addition)
136+42
178
The predicted height of Robert when he is an adult is 178 cm.
