Answer:
14/25, 6/25, 1/5, 3/5
Step-by-step explanation:
I believe the answer will be 23in
D; 1 and 6 are being added together first then divided by 7, so need the parentheses around 1 and 6
This an isosceles right triangle. The sides opposed to the angle 45° are congruent. Let x be this side==> x²+x² =(7√2)² (Pythagoras)
2x² = 49(2) ==> 2x²= 98 ==> x²=49 & x=7
Use the Cosine Rule
q^2 = 20^2 + 30^2 - 2^20*30 cos 15
= 140.89
so q = sqrt 140.89 = 11.9 (answer)
