Answer:
Explanation:
<u>using the formula:</u>
Answer:
C. 8
Step-by-step explanation:
xy - 3x
x = 4 and y = 5
(4)*(5) - 3(4)
20 - 12 = 8
Answer:(10x - 3y) • (100x2 + 30xy + 9y2)
Step-by-step explanation:
(1000 • (x3)) - 33y3
(23•53x3) - 33y3
(10x - 3y) • (100x2 + 30xy + 9y2)
100x2 + 30xy + 9y2
(10x - 3y) • (100x2 + 30xy + 9y2)
So, we can say that the new pump is 1 and the old pump is 1.5 less efficient as the new pump. With this, is we were to say two of the new pumps, it would be 5 hours. However, because one is an old pump it would be 7.5 hours
Answer:
Step-by-step explanation:
The general equation of a circle is , x² + y² + 2gx + 2fy + c = 0
Substituting the three points we get the following equations,
2g +14f +c=-50
14g - 2f + c =-50
16g +12f + c = -100
Solving these equations we get,
g =-4, f = -3, c = 0
Hence general equation of circle is,
x² + y² - 8x - 6y = 0
