Answer:
10
Step-by-step explanation:
The question is wrong it should be 5C3
5C3=5!/((5-3)!•3!)=5!/(2!•3!)
=(5•4•3•2•1)/(2•1•3•2•1)
=10
Answer:
sin A = 15/17
sec A = 17/8
Step-by-step explanation:
15 cot A = 8
First get cot A alone.
cot A = 8 / 15
Since cot is the reciprocal of tan then flip 15 and 8.
tan A = 15 / 8
Now you have the opposite and adjacent sides, just find the hypotenuse with Pythagorean's theorem
15^2 + 8^2 = 289
= 17
Now that you have all the sides use the opposite and hypotenuse to get sine and the adjacent and hypotenuse to get cosine then flip to get secant.
sin A = 15/17
cos A = 8/17
sec A = 17/8
Answer:
82.5 sq ft
Step-by-step explanation:
paralaalallelomgram area = b*h so the b is the base and base is 10 and h is the height and height is 8.25 so 10 & 8.25 = 82.5 sq ft
Find the slop equation.
Slope: -3
Y-intetrcept: -3

Now write it as an inuquality.
It's shaded to the left and the line is not fully filled in. Which means that whatever "y" is, it's Less than the and equal to the slope.

Hope this helps :)
Answer: all true
Step-by-step explanation:
Look at the picture closely ull see it