Answer:
12°
Step-by-step explanation:
a right triangle implies there is an angle that is 90°
another angle is 78°
the third angle is 180 - (90 + 78) = 180 - 168 = 12°
Step-by-step explanation:
the line passes through (6, 2) and (10, -1),
the slope =
(-1-2)/(10-6) = -3/4
the equation :
y-2 = -3/4(x -6)
Answer:
10
Step-by-step explanation:
So we have the expression:

First, evaluate within the absolute value bars. 3 times -4 is -12. Thus:

Now, subtract:

The absolute value of -10 is positive 10. So:

And we're done!
Step-by-step explanation:
sec x − cos x
Secant is the inverse of cosine:
(1 / cos x) − cos x
Find the common denominator:
(1 / cos x) − (cos² x / cos x)
Subtract:
(1 − cos² x) / cos x
No, if you are subtracting a bigger than the one it is being taken from then the answer will be negative. Ex:5-10=-5
Hope this helps:)