Step #1 for both: figure out which interval your x-value fits into.
For f(-2), x=-2 and -2 fits with x ≤ -2, the top interval.
For f(3), x=3 and 3 fits into -2 < x ≤ 3, the middle interval.
Step #2 for both, plug in your x-value to the piece of the function that fits with that interval.
For f(-2), we know x≤-2, so we use 2x+8 to evaluate x=-2.
For f(3), we know -2
f(-2) = 2(-2)+8 = -4+8 = 4
f(3) = (3)^2 -3 = 9-3 = 6
Answer:
the other sides of the square
Step-by-step explanation:
The value of x is 5/6 and y is 8/5.
Step-by-step explanation:
Given,
12x+15y=34 Eqn 1
-6x+5y=3 Eqn 2
Multiplying Eqn 2 by 2
Adding Eqn 1 and 3
Dividing both sides by 25
Putting y= 8/5 in Eqn 1
Dividing both sides by 12
The value of x is 5/6 and y is 8/5.
Keywords: Linear equations, fractions
Learn more about fractions at:
#LearnwithBrainly
Answer: 65
Step-by-step explanation:
65 mph x 2 = 130 miles in 2 hours
520 total miles - 130 = 390
8 total hours - 2 hours = 6 hours
390 / 6 = 65 ave mph
17:20 is the lowest terms, my dude...
