Answer:
Step-by-step explanation:
Function (1) has been given as,
y = 0.5 + 3x
Table for the points on this function,
x 0 1 2 3 4
y 0.5 3.5 6.5 9.5 12.5


There is a common difference of 3 each successive term of y from the previous term.
Therefore, starting point of the function is (0, 0.5)
There is a linear growth of 3 with the increase in the value of x.
Function (2),
y = 3(0.5)ˣ
x 0 1 2 3 4
y 3 1.5 0.75 0.375 0.1875
Starting point of the function will be (0, 3)
There is a common ratio of 0.5 in each successive term to the previous term.


Function (2) increases exponentially with a common ratio of (0.5) with the increase in x.
Answer:
11a. 15
Step-by-step explanation:
11a. Area of square: L * L

L = 15
3 1/4 ounces = 3.25 Ounces.
3.25 x 5 = 16.25 ounces (16 1/4 ounces)
Answer:
70 questions
Step-by-step explanation:
You can make a proportion.

Multiply across:
7x=490
Divide by 7:
x=70
<u>Final answer</u>
70 questions
Answer:
10 kph
Step-by-step explanation:
Find the speed of the current of the river.
20/(20 - c) + 180/(20 + c) = 8
20(20 + c) + 180(20 - c) = 8(400 - c^2)
8c^2 - 160c + 800 = 0
8(c^2 - 20c + 100) = 0
8(c - 10)^2 = 0
c = 10
The speed of the current of the river is 10 km/hour.