Answer:
7161 km³
Step-by-step explanation:
28²+b²=32.5²
784+b²=1056.25
b²=1056.25-784
b²=272.25
b=√272.25
b=16.5
1/2x28x16.5x31=7161
Answer:
y = 4
Step-by-step explanation:
Since the line if parallel to the x-axis, regardless of the value of x, y will be equal to 4. In general, then, the points on the line are (x,4), where x is any value, including 1.
4680 - 520 = 4160
4160/2 = 2080$ this is the answer
Answer:
1st:Linear, 2nd:Non-Linear
Step-by-step explanation:
1st one is linear because you will add the same amount of money every day, so it's linear.But sometimes you will earn more or less in 2nd one, so that is non linear.
Answer:

Step-by-step explanation:
Given the expression:

First, we open the outer brackets

Therefore:
