Answer: A , C and D
Step-by-step explanation:
Answer:
The correct answer is D) 4/5 and 40/50
Step-by-step explanation:
In order to find this, do the division and find the decimal answer. When they match, they are equivalent.
4/5 = .8
40/50 = .8
Answer:
A and E
Step-by-step explanation:
2x + 1 > 5
So, subtract the 1 from both sides,
2x > 4
x > 2
So anything greater than 2...
7 and 3 are greater than 2.
A and E.
Answer:
≈ 47.2 m
Step-by-step explanation:
let the height from the sea to the base of lighthouse be h₁
let the height from the sea to the top of the lighthouse be h₂
using the tangent ratio in the right triangle
tan55.1° = 
= 
( multiply both sides by 610 )
h₁ = 610 tan55.1°
tan56.5° = 
( multiply both sides by 610 )
h₂ = 610 tan56.5°
then
height of lighthouse = h₂ - h₁
= 610 tan56.5° - 610 tan55.1°
= 610(tan56.5° - tan55.1° )
≈ 47.2 m ( to the nearest tenth )
So basically it sounds like it wants you to make the denominators match.
Here's an example:
3/4 and 1/2
First you would find the Least Common Multiple (LCM), which of these two numbers is 4.
3/4 and 2/4 Then you would multiply the denominator the same amount you multiplied the denominator.
and voila! 3/4 and 2/4 have matching denominators
Please ask questions if you are still confused!
