I need help asap plz

Step-by-step explanation:

The sides of a 45°-45°-90° triangle are in the ratio 1:1:√2

The side opposite the 90° angle is 12√2.

a = c = (12√2)/√2 = 12

The sides of a 30°-60°-90° are in the ratio 1:√3:2.

The length of the side opposite the 30° angle is 12 units.

d = length of side opposite 60° angle = 12√3 units

b = length of side opposite the 90° angle = 2×12 = 24 units

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92