mak6156
05.12.2020 •
Mathematics
For what values of p will the equation 5x2 - px +45 = 0 have equal roots
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Ответ:
The two solutions are:
p = 30 and p = -30
Step-by-step explanation:
Given the equation
We know that the quadratic equation ax²+bx+c=0 will have equal roots if its discriminant b²-4ac = 0For the given quadratic equation
a=5, b=-p, c=45
b²-4ac = 0
(-p)² - 4(5)(45)=0
p²-900=0
p² = 900
p = ± 30
The two solutions are:
p = 30 and p = -30
Ответ:
In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. ... Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.