7 = r^1/2 is the same as saying 7 = square root of r. So, to get rid of the square root sign on the r, you need to square it, and when you do something to one side of the equation, you have to do the same to the other side. So after squaring both sides, you get 49 = r.
Answer: 52 weeks
Step-by-step explanation:
There are 52 weeks in a year, so she should divide her number by 52.
790-175x4=
take 175 and multiply it by 4 which gives you 700
Then subtract 700 from 790 and you get $90 after 4 years.
Your variables are 175 and 4
Let the width be x.
Length: 5"+2x
102=(5+2x)x
102=5x+2x²
0=2x²+5x-102
x=-8.5 or x=6" (I used my graphing calculator to find this)
Since width cannot be negative, the only solution left would be 6. The length would be (5+2(6))=11"
Hope I helped :)
<h2>
Answer:</h2>
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Step-by-step explanation:</h2>
From the given graph, we can know two points:
Using the slope intercept form of the equation of a line, we get:
Where the slope is and the y-intercept is
From mathematics, we know that a system of two linear equations has no solution if and only if the two equations have the same slope, but not the same y-intercept. So, from the options, the second equation is:
And the slope intercept form of this equation is:
So the slope is and the y-intercept is , the systems formed by these two equations has no solution.