Make y the subject in both equations
![2x-y=7](https://tex.z-dn.net/?f=2x-y%3D7%20)
![-y=-2x+7](https://tex.z-dn.net/?f=-y%3D-2x%2B7%20)
![y=2x-7](https://tex.z-dn.net/?f=%20y%3D2x-7)
For the second equation
![y=2x+3](https://tex.z-dn.net/?f=%20y%3D2x%2B3%20)
The two equations are parallel because they have the same gradient or slope but different y intercepts.
This type of equations have no solution because they will never intersect.
![NO SOLUTION](https://tex.z-dn.net/?f=%20%3CB%3E%20NO%20SOLUTION%20%3C%2FB%3E%20)
The correct answer is C
Answer:
D) 3.57%
Step-by-step explanation:
The percentage change is given by ...
percent change = ((new value) -(old value))/(old value) × 100%
= (3.19 -3.08)/3.08 × 100% = 0.11/3.08 × 100% = (11/3.08)% ≈ 3.57%
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When dealing with percentages, you need to be clear about what number represents 100%, the reference value against which errors or changes are measured. Here, it is the π of the mug, 3.08.
We know that
Mean and median both try to measure the central tendency in a data set.The mean is commonly used, but sometimes the median is preferred.
Mode is the element which occurs the most times in the set
therefore
the answer is the option
Both the mean and median are appropriate measures of center.
Answer:
we can draw the graph of cosine with amplitude 2.
Step-by-step explanation:
In the given function g(x) = 2cosx we know the following parameters which are helpful to draw the graph.
Its a cosine graph given in the form of y = acos(Bx + c) + d
Here a is amplitude, period = , c = phase shift, d = vertical shift
We know a = 2, B = , c = 0, d = 0.
Answer:
109 car stereos
Step-by-step explanation:
If 149 car stereos had a CD player (with or without a cassette player), and 40 car stereos had both a CD and a cassette player, the number of stereos with only a CD player is determined by:
![CD_{only} = CD - Both\\CD_{only} =149-40\\CD_{only} =109\ car\ stereos](https://tex.z-dn.net/?f=CD_%7Bonly%7D%20%3D%20CD%20-%20Both%5C%5CCD_%7Bonly%7D%20%3D149-40%5C%5CCD_%7Bonly%7D%20%3D109%5C%20car%5C%20stereos)
109 car stereos had only a CD player.