Answer:
The length of the missing side b would be 16m
Step-by-step explanation:
first you would use the formula a2+b2=c2
12^2+b2=20^2
-take 12*12 and 20*20
144+b2=400
-subtract 144 from 400 in order to get b2 alone
b2=256
-take the square root of b and 256
b=16
Answer:
x=4
Step-by-step explanation:
5x-4x+2=6
x+2=6
x=6-2
x=4
Answer:
- 3108
Step-by-step explanation:
The sum to n terms of an arithmetic series is
= 
[ 2
+ (n - 1)d ]
Substitute the given values into the formula
= 
[ (2 × - 26) + (23 × - 9) ]
= 12 ( - 52 - 207 )
= 12 × - 259 = - 3108
Answer:
Step-by-step explanation:
(1860-11)=1849
√(1849) = 43
(A quick trial)
