Answer:
-400
Step-by-step explanation:
20 + 14 + 8 + ... + (-70) =
= (-6·1+26)+(-6·2+26)+(-6·3+26)+...+(-6·16+26) =
= -6·(1+2+3+...+16)+26·16 =
= -6·16·17/2+26·16 =
= -6·8·17+26·16 =
= -816+416 =
= -400
Answer:
Negative numbers go first, the greater the number, the smaller the number.
I got E and F. A would be correct as is I think, B is 9^2x, C, correct as is, D, is 9 ^2x, and E and F is 9^x
Hi There!
The answer to 7/10 as a decimal is 0.7 mile, because you have to divide 7 by 10. Once you divide you should get 0.7mile.
So, 0.7 changed as a decimal is 0.7
Hope This Helps!
Answer:
k<-9
Step-by-step explanation:
First you want to isolate the variable, or k in this case. So you will subtract 12 on both sides which will leave you with -2k<18. Then you will divide both sides by -2. Which turns into k>-9. But since you divided by a negative, the sign changes, so the answer would be k<-9.
