Answer:
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Step-by-step explanation:
You must earn 243 points to have earned 93% of all possible points.
We first multiply each percentage on the previous tests by 150:
0.88*150 = 132
0.94*150 = 141
0.9*150 = 135
The total number of points possible is given by adding up the possible points for the three previous tests and the 250 for the last test:
150+150+150+250 = 700
93% of the 700 points would be 0.93(700) = 651 points.
Now we have 132+141+135+x (last test) = 651
408 + x = 651
Subtract 408 from both sides:
408+x-408 = 651-408
x = 243
If you have two numbers x, y. The geometric mean is: √xy
For 4 and x. Geometric Mean = √4x and this is equal to √6
√4x = √6 Square both sides. The square root disappears.
4x = 6
x = 6/4 = 3/2 = 1.5
The other number is 1.5.
Add the x and y and you will get 4x^4=8y^2
