Answer:
A
Step-by-step explanation:
Answer:
a. The constant = 45
b. The unit rate is 45 miles per hour
c. d = 45t
Step-by-step explanation:
a. ∵ d ∝ t
∴ d = kt
∵ d = 90 at t = 2
∴ 90 = k(2)
∴ k = 90 ÷ 2 = 45
∴ The constant of proportionality is 45
b. ∵ k = d(miles) ÷ t(hours) = 45
∴ The unit rate is 45 miles per hour
c. The equation is ⇒ d = 45t
Answer:
The slope is 1.
Step-by-step explanation: when you graph them you do the rise/run you get 1 which is the slope.
Answer:
10
Step-by-step explanation:
QT=ST/2=√(12^2+16^2)/2=10
Well.. a polynomial expression is an expression that has 3 or more different algebraic terms.
Algebraic terms can be: x^2, 2x, or x^3
One example is: x^2 + x^3 - 7y
Since x^(-2)+5 only has one algebraic term, which is x^(-2), this is not a polynomial.
