Answer:
the symmetric property of equality
Step-by-step explanation:
If 5 = x + 2, then x + 2 = 5. both have an equation so it represents an equation.
Reflexive property of equality states that a=a
Symmetric property of equality states that
If c=a+b then a+b= c
In the given statement
If then
The given statement represents the symmetric property of equality
Answer:
2 units
Step-by-step explanation:
We are given that
Angle ,radian
Length of an arc=
We have to find the radius of circle in simples form.
We know that
Where l=Length of arc
r=Radius of circle
Using the formula
units
Hence, the radius of the circle=2 units
Answer:
It will take 5.61 seconds for the coin to reach the stream.
Step-by-step explanation:
The height of the coin, after t seconds, is given by the following equation:
How long will it take the coin to reach the stream?
The stream is the ground level.
So the coin reaches the stream when h(t) = 0.
Multiplying by (-1)
Solving a quadratic equation:
Given a second order polynomial expressed by the following equation:
.
This polynomial has roots such that
, given by the following formulas:
In this question:
So
Time is a positive measure, so we take the positive value.
It will take 5.61 seconds for the coin to reach the stream.