Four ninths means 4/9 and of means multiply= 4/9 × 45
=20/1
=20
In a right triangle there are 2 legs and a hypotenuse. The way you can tell if it's a right triangle is by finding the slope of both the legs. If their slopes are opposite reciprocals of each other, then they are perpendicular. By definition, perpendicular lines meet to create a right angle.
Answer:
2 numbers could be 10 and 12
or - 12 and - 10
Step-by-step explanation:
let the 2 numbers be x and x + 2
since they are 2 consecutive even numbers, the difference between them is 2
the difference between the reciprocals is 1/60
we have to mulitply the 2 denominators x and (x+2) to get a common denominator for the 2 fractions
=
we can then remove the brackets from the numerator and denominator
and then cross multiply
60 * 2 = x² + 2x
120 = x² + 2x
x² + 2x - 120 = 0
we have a quadratic equation which needs to be solved
x² + 12x - 10x - 120 = 0
x (x + 12) - 10(x + 12) = 0
(x - 10) (x + 12) = 0
x - 10 = 0 or x + 12 = 0
x = 10 x = -12
Answer:
D
Step-by-step explanation:
hope this helps. have a great day
