## logan13 one year ago Which is equal to 42 • 48? A. 416 B. 410 C. 46 D. 4−6

1. anonymous

What is the dot?

2. Haseeb96

just multiply 43 with 48 and get your answer her dot show multiplication sign

You can't do this on your calculator? Like, really?

4. anonymous

If you don't have one: http://www.online-calculator.com/

6. anonymous

But if you multiply those numbers then it doesn't equal any of those answers

7. phi

I assume you mean 4^2 * 4^8 that is 4 times itself 10 times

8. anonymous

The answer to the multiplication isn't one of the options, so it must be something else.

9. logan13

@phi yes

10. phi

do you now that $4^2 = 4\cdot 4$ ? and $4^8 = 4 \cdot 4\cdot 4\cdot 4\cdot 4\cdot 4\cdot 4\cdot 4$ do you see that putting a little 8 in the upper right is short-hand for multiplying 4 times itself 8 times?

11. phi

so the answer is $4^2 \cdot 4^8 \\ = 4 \cdot 4\cdot 4\cdot 4\cdot 4\cdot 4\cdot 4\cdot 4 \cdot 4 \cdot 4$

12. logan13

so c

13. phi

I posted the answer. count the number of 4's how many are there being multiplied together?

14. logan13

d