Round to the tens place to estimate the answer.

172 x 18 =

3400

Step-by-step explanation:

When you round to the tens place you look at the number in the ones place. If it is 4 or less then you keep the tens place the same. If it's 5 or more then you round the tens place up one. Then you make the ones digit a 0.

Since there is a 2 in the ones place in 172, you keep the tens digit the same (170).

Since there is an 8 in the ones place in 18, you round the tens digit up one (20).

Now you multiply.

170×20=3400

I hope that made sense.

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

6^2 or 36

step-by-step explanation:

6000n

6×1000n

6×10^3 n

so we need 6n need to be a perfect cube

so n has to be 6^2 so that 6n is 6^3

what i'm saying is if you let n be 6^2 you have 6^3×10^3 or 60^3 which is a perfect cube