This sequence is arithmetic, because each number is the last number plus two.
Estimation for addition: 86 rounds up to 90 and 17 rounds up to 20 so:
90 + 20 = 110
Estimation for subtraction is the same thing but with subtraction
90 - 20 = 70
Now for the exact answers:
86 + 17 = 103
86 - 17 = 69
Your answers are 110, 70, 103, and 69.
Answer:
20
Step-by-step explanation:
2 in 529 is in the tens place - 10
So if 2 is in the tens place, we have 20 as the value of 2.
9514 1404 393
Answer:
(2x -3)(2x -1)
Step-by-step explanation:
We have filled in the X-diagram so the side values have a product equal to the top value, and a sum equal to the bottom values (the middle term).
We're not sure how you've been taught to split the leading coefficient to arrive at the factors shown on the right.
Answer:
Umm 2 1/2
Step-by-step explanation:
im confident
