Answer:
c. y = -4x
Step-by-step explanation:
use slope formula
Answer:
Step-by-step explanation:
Cot is the inverse of tan. Therefore, the ratios are also inverses. The same goes for csc, which is the inverse of sin.
The tan ∠B = 
so the cot ∠B = 
so the first statement is false.
The sin ∠C = 
so the csc ∠C = 
so the second statement is false.
The tan ∠C = so the cot ∠C = so the third statement is false.
The sin ∠B = 
so the csc ∠B = 
which reduces to 
so the last statement is true!
Answer is 20 centimeters
Step-by-step explanation:
Answer:
The present age of son is 7
Step-by-step explanation:
Let the son age be x
One year ago
Son's age = x - 1
Therefore man's age = 8(x-1) =8x - 8
Now man's age = x^2
Difference between both ages if man =1 years
So
x^2 -(8x-8) = 1
x^2-8x + 8-1 =0
x^2- 8x + 7 = 0
x^2 - 7x -x + 7 = 0
X(x-7) - 7 ( x - 7) = 0
(x - 1) ( x - 7) = 0
x = 1, 7
But son cannot be 1 years
Therefore ,
x = 7
SO,
age of son is <em>7</em>
age of father is x×7=<em>49</em>
