Use cosine.

We have:
adjacent = 9cm and hypotenuse = 17 cm

15% in decimal form would be 0.15. 1/2 would be 0.50. So following that, if we were to place these in greatest to least form, then it would be: 0.50, 0.15, 0.09, 0.2. I hope I've ordered these correctly and that I've helped. Have a nice day.
Answer:
y=26.67
Step-by-step explanation:
The given equation is 0.75x+1.5y=40.
We need to show the result of substituting x=0 in above equation.
0.75x+1.5y=40
Put x = 0
0.75(0)+1.5y=40
0+1.5y=40
⇒ 1.5y=4

So, the value of y = 26.67 when x = 0.
Answer:
B) 0.45
Step-by-step explanation:
The total number of students is:
4 + 5 + 4 + 6 + 10 + 8 + 2 + 1 = 40
The number of students with brown hair is 10 + 8 = 18.
So the probability is:
P = 18/40 = 0.45
Answer:
x = 3/4
Step-by-step explanation:
Simply add 1/4 to both sides of the equation to isolate <em>x</em> and to get your answer.
x = 1/4 + 1/2
x = 1/4 + 2/4
x = 3/4 or 0.75