Answer:
A. y = sine (x + 90 degrees)
Step-by-step explanation:
- y = cosine(x) is a curve that crosses the y-axis at y = 1 and completes one cycle at 360 degrees.
- sine(x) have the same curve than cosine(x), but translated 90° to the right respect cosine(x)
- f(x + c) translates f(x) horizontally c units to the left.
- Then, sine(x + 90) is equivalent to cosine(x)
Estimate the quotient of 358 divided by 3.
Let’s start estimating without using calculator.
=> 358 = 300 + 50 + 8
Let’s have the 300 first. How many 3s are there in 300
=> 300 / 3 = 100 – so there are 100 3s
Next, let’s have the 50. How many 3s are there in 50
=> 50 / 3 = 16 remainder 2.
So let’s go to the last number the 8 + 2 remainder = 10
=> How many 3s are there in 10?
=> 10 / 3 = 3 remainder 1
=> 100 + 16 + 3 = 119 remainder 1
let’s check
=> 119 * 3 = 357 + 1 = 358
