If y varies directly with x and y = 5 when x = 4, find the value of y when x = -8.
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
We have
23 x 36 mod 5 = 3 (since unit digit is 8)
23x36 mod 11 =3
Since 5 and 11 are prime we get
23x36 mod 55 = 3 mod 55
--------------------------------------------------
b) 91 = 13 x7
29x51 mod 91 =23
Answer:
a = 4
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos60° = , then
cos60° = =
=
( cross- multiply )
a = 4