Answer:
Step-by-step explanation:
Given
1: 5x + 20
2: Opposite of 20
Required
Find their sum
Suppose that a is a number; The opposite of a is -a. So, the opposite of 20 is -20.
Having said that:
The required sum is:
Remove bracket
Answer:
Center (-5, 2) and radius 5
Step-by-step explanation:
The equation for a circle is
Where (h, k) is the center and r is the radius.
Change in altitude:
42,000 - 18,000 = 24,000 feet
Rate of change = 24,000 feet / 12 minutes = 2,000 feet per minute
Because the plane was going down, the rate of change would be negative.
The rate would be -2,000 feet per minute.
4 * (25 * 1.2) = (4 * 25) * 1.2
Answer:
it's 2
Step-by-step explanation:
square root of 8 is 2