Answer: 45
Explanation:
The sine of any acute angle is equal to the cosine of its complement. The cosine of any acute angle is equal to the sine of its complement. of any acute angle equals its cofunction of the angle's complement. Yes, there is a "relationship" regarding the tangent of the two acute angles (A and B) in a right triangle.
Answer:


Step-by-step explanation:
Write the system


Solve by Elimination.
multiply the second equation by -3.


Add the Equations.


Plug this back in one of the equations.


4y.
Is the answer
Hope this helps
Answer: 
Step-by-step explanation:
The confidence interval for population mean is given by :-

, where
= Population standard deviation.
n= sample size
= Sample mean
z* = Critical z-value .
Given :
n= 49
Two-tailed critical value for 95% confidence interval = 
Then, the 95% confidence interval would be :-




Hence, the 95% confidence interval for estimating the population mean
:

Answer:
m= -5/8
Step-by-step explanation:
Slope of a line containing the points,

where, m is the slope
Here,
