The total number of keys equals:
12 + 5 + 11 + 2 = 30 keys
The probability to pick a sliver key is:
12/30 = 2/5
The probability to pick a copper key is:
11/30
Hope that helps
142 meters
with all the mathy stuff i did the answer was 142 meters
13 + 22 x 13-(-22) =783
Rules of addition and subtraction are :
1. - x - = +
2. + x - = -
3. - x + = -
In English, minus(-) multiplied(×)by itself(-) equals to addition(+).
Plus sign (+)or addition multiplied by minus equals minus :) be happy
Answer:why
Step-by-step explanation:
because i don't know
Answer:
-√7/4
Step-by-step explanation:
Mathematically;
Sine is the ratio of opposite to hypotenuse
So here, hypotenuse is 4
The opposite is 3
To get the adjacent, we use the Pythagoras’ theorem which states that the square of the hypotenuse is equal the sum of the squares of the two other sides
Let the adjacent be x
4^2 = 3^2 + x^2
x^2 = 16-9
x^2 = 7
x = √7
The cosine is the ratio of the adjacent to the hypotenuse
Since we want to consider quadrant II
Cosine is negative here;
So the answer for Cos will be;
Cos theta = -√7/4
