Answer:
y= -2x-7
Step-by-step explanation:
Start with the linear equation formula.
y= mx+b
identify what you already have.
x= -2 and y= -3 m(slope)= -2
we are trying to find b, so plug in what you have.
-3=-2(-2)+b
simplify.
-3= 4+b
subtract 4 on both sides.
-7= b
set up your equation without the x and y value.
y= -2x-7
The set of numbers that provide closure under subtraction are Integers
Answer:
k= 1/4 m=16
Step-by-step explanation:
7 over 28 is 1/4 and 4 times 4 is 16
Answer:
So, the time interval between successive compression from the source is 0.002 seconds.
Step-by-step explanation:
Given that,
Frequency of the tone, f = 500 Hz
It is sitting at a distance of 450 m from the source of sound, d = 450 m
Let t is the time interval between successive compression from the source. We know that the relation between the frequency and the time period is :

<h3>So, the time interval between successive compression from the source is 0.002 seconds.</h3>
The answer is of this question is B.