Answer:
0.33
Step-by-step explanation:
Let A denote an event. The odds of the horse finishing second is 33 to 67.
From the information, the total outcomes of event A is:
Hence, there are 100 total outcomes. The probability of the horse finishing second is calculated as:
Hence, the probability of finishing second is 0.33
Add two like terms: 16x+(-9x)=7x
Add 15 to both sides: 7x=28
Divide 7 on both sides: x=4
To solve this type of questions, a practical way is to think of the 1.quadrant situation, that is, model the situation in right triangle trigonometry.
Check the picture.
For the moment let
(we make it positive since we are modeling using a triangle.)
Using the Pythagorean theorem, the length of the side opposite to angle
is found to be 15 units.
We can see that the sine of theta is
.
In the third quadrant, both sine and cosine of an angle are negative, so the actual values of the sine and cosine of theta are, eventually:
,
.
Recall the double-angle identities (formulas):
,
.
Using these identities and the ratios found above, we have:
Similarly, applying the double angle formula for the sine we have:
Answer:
Answer: its 88 :]
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
(-1)^2=(-1)(-1)=1
2(1)(3)=2*3=6
