Answer:
the first one is 90, the second is 150, the third is option dStep-by-step explanation:
Answer:
x = 6 cm
Step-by-step explanation:
Given ratio of sides of similar figures = a : b , then
ratio of areas = a² : b²
Here ratio of areas = 5 : 45 = 1 : 9 , so
ratio of sides = : = 1 : 3
Thus side of B is 3 times side of A
x = 3 × 2 = 6 cm
Answer:
The answer is B -4
Step-by-step explanation:
An inverse function is a function that will “undo” anything that the original function does. For example, if a function takes a to b, then the inverse must take b to a.
Answer:
$17,280
Step-by-step explanation:
The model for profit (y), in thousands of dollars, as a function of time (x), in years after 1970 is:
The corresponding value of x in 1978 is:
Estimating the profit (in thousands of dollars) in 1978:
Converting it to dollars:
The estimated profit in 1978 is $17,280.