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
The first question is a Statistical Question. This is because Statistical Questions are questions that can be answered with a percent, range or average. It could have many correct answers.
The Second one is a Non-Statistical Question. This is because this cannot be answered with a percent, range, or average.
Answers
(sin40)/(cos40) and
(cos50)/(sin50)
Explanations
Tangent is a trigonometric ratio given by,
tan = opposite/adjacent.
lets take,
x⇒adjacent
y⇒opposite
h⇒hypotenuse
tanФ=y/x
sinФ=y/h and
cosФ=x/h
(sinФ)/(cosФ) = y/h ÷ x/h
=y/h×h/x
=y/x
This shows that
(sinФ)/(cosФ) = tanФ
We also know that,
sinФ = cos(90-Ф). So,
sin40 = cos(90-40) =cos50
So therefore;
tan40 = (sin40)/(cos40) = (cos50)/(sin50)
B+2c-2 is for the first question I think
Answer:
what?
Step-by-step explanation:
