What is the product of 3.4 × 10−14 and 1.8 × 1028?

6.12 × 1014
9.4 × 1014
5.2 × 1042
6.12 × 1042

Which shows the pre image of triangle xyz

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.