Step-by-step explanation:
1. 64=1+3+5+7+9+11+13+15 that is a total of 8 odd numbers so n=8
2.((new-old)/old)×100%=percentual difference
so ((new-$55)/$55)×100%=20%
new-$55=$55×0.2
new=$55+$55×0.2=$66
190+38=228
Step-by-step explanation:
these are the only units without Algebra
Any number ending with a even number is even
B. 41680
C. 55822
D. 87318
E. 93256
Answers are B, C, D, E
Answer: x = 16
Step-by-step explanation:
4x + 4x-2 + 3x + 6 = 180 (being sum of triangle)
or, 11x + 4= 180
or, 11x = 176
so, x = 176/11
so, x = 16
Answer: 9h x 8n^2
we rearrange this underneath the question (-5h-2h) (2nx3n)(2+2) or if 2^2 see explanation. It must therefore be 7h6n4
Step-by-step explanation:
if its ^2 )(power2) then the second reasonable answer is (7h-2h)(2n^2 x 2n^2)=9h x 4n^2 x4n^2 =9h 8n^2 or 17hn^2 but i leave as 9h 8n^2
You can expand only if multiplying 9hx4 for example but not combine the letters. The questions that ask you to mix are much different to this. but if you want to add them 9h+8n^2 =17hn^2
