Answer:6
Step-by-step explanation:
*we solve every bracket alone
-(√2+1)² = [rule:1st *1st + 2*1st*2nd + 2nd*2nd]
2+2√2+1
3+2√2
-(√2-1)= [rule:1st*1st - 2*1st*2nd + 2nd+2nd]
2-2√2+1
3-2√2
-we write the whole equation
3+2√2+3-2√2 (+2√2 - 2√2) {positive and negative remove each other}
3+3=6
Answer:
4
Step-by-step explanation:
In a 45-45-90 triangle, the length of the hypotenuse is √2 times the legs.
s√2 = 4√2
s = 4
Each leg is 4 units long.
Answer:
90%
Step-by-step explanation:
100%=120 pupils
108pupils
108 x 100= 10800/120=90 %
Answer:
your answer is 21
Step-by-step explanation:
ffffffffffffff
Step-by-step explanation:
The distance from the surfer to the shoreline will be found as follows:
tan θ= opposite/adjacent
θ=10°
opposite=7ft
adjacent= x ft
substituting the values in our formula and solving for x we get
tan 10=7/x
hence
x=7/tan10
x=39.69897~ 39.7 ft
The surfer is 39.7 ft from the shoreline.
