7.15h+t>250 h=25
25×7.15=178.75
250-178.75=71.25
She must earn $71.25 in tips to earn $250 a week so the answer would be "x>$71.25"
Answer:
B
Step-by-step explanation:
<h2>
Answer:</h2>
The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same. For example, when point P with coordinates (5,4) is reflecting across the X axis and mapped onto point P', the coordinates of P' are (5,-4).
a. To get a B grade the least average is 80. That is a total of 5*80 = 400.
So if the least score is x we have;
84 + 95 + 83 + 86 + x ≥ 400
x ≥ 400 - 348
x ≥ 52
so the least score is 52
Answer:
Greatest possible number of solutions of these set of equations are 2
Step-by-step explanation:
We have been given two functions in the question.
x² + y² = 9
9x + 2y = 16
We know that the equation of circle is given by:
(x - h)² + (y - k)² = r²
However, if (h, k) is equals to (0, 0), the equation of circle becomes:
x² + y² = r²
Which is similar to the fist equation
x² + y² = 3²
Hence first equation is a circle.
As the second equation is a linear equation, it is simply a line.
We know that a line passing through the circle can intersect it at only 2 points.
Where points of intersection between both circle and line shows the solution.
So.
There are 2 possible solution to this set of equations