Given that,
ABC is a right angle triangle, C is the right angle.
To find,
cosB = ?
Solution,
The sum of angle of a triangle is equal to 180 degrees. So,
∠A + ∠B + ∠C = 180°
Put ∠C = 90°
∠A + ∠B + 90° = 180°
∠A + ∠B = 90°
Taking cos with each term.
cosA+cosB = cos (90)
cosA+cosB = 0
cosB=-sinA
Hence, cosB = sinA.
15 feet is what I came up with.
Answer: Multiplying and Dividing Decimals by Powers of 10
When you divide a decimal by a power of 10, simply move the decimal place to the left as many places as there are 0s in the power of 10.
33/7 is an improper fraction.
To make it a mixed fraction, do this:-
How many times does 7 go into 33?
About 4 times.
4*7 = 28
4 is our whole number.
Now, subtract to get the numerator.
33-28 = 5
4 5/7
Final answer: 4 5/7
