Fern's estimate is not correct because he rounded 548 wrong, it would be rounded to 550 instead since the number 8 is closer to 10. So the correct answer would be 420.
63+12x<15
12x<-48 (subtract 63 from both sides)
x<-4 (divide out the 12)
Answer:
The length is 72
Step-by-step explanation:
length x width = area
9 x length = 648
length = 72
It is true because every term is the previous term multiplied by -2. So, -40 x -2 = 80, 80 x -2 = -160
Answer:
Angle 5, 4, and 7.
Step-by-step explanation:
Angle 2 is vertical to angle 5, making them congruent.
Angle 2 corresponds with angle 4, making them congruent.
Angle 2 is an alternate interior to angle 7, making them congruent.
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The rest of the angles just combine with angle two to make 180.
