-45x+72
you multiply the 9 by everything in the parentheses
Answer:
130
Step-by-step explanation:
10+10+5+5=30
50+50=100
30+100=130
Answer:
C.) -5 and 5
Step-by-step explanation:
Plug in -5 & 5 separately for x.
Plug in -5 for in the equation. Remember to follow PEMDAS. First solve for power, then multiplication.
2(-5)² = 50
2(25) = 50
50 = 50 (True).
Plug in 5 into the equation for x. Remember to follow PEMDAS. First solve for power, then multiplication.
2(5)² = 50
2(25) = 50
50 = 50 (True).
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Answer: (2, 3) and (4,2) are not equal.
Step-by-step explanation:
An ordered pair is something like (x, y)
and two pairs (x1, y1) and (x2, y2) are only equal if x1 = x2 and y1 = y2
in this case, we have (2, 3) and (4, 2)
you can see that in the pairs the value of x is different, and the value of y is also different. Then we have that the pairs can not be equal.
