Let x,y be the two numbers.
Given that one number is 5 greater than another.
Let x be the smaller number ans y be the greater number.
That is y=x+5. Let this be the first equation.
And also given that product of the two numbers is 84.
That is x*y = 84, let us plugin y=x+5 here.
x*(x+5) = 84
x^2 + 5x -84 = 0.
x^2+12x-7x-84 = 0
x(x+12)-7(x+12) =0
(x-7)(x+12)=0
That is x= 7 or -12.
If x=7, y= 7+5=12.
If x=-12, y= -12+5 = -7.
Hence two positive numbers corresponding to given conditions are 7,12.
And two negative numbers corresponding to given conditions are -12,-7.
Answer:
Step-by-step explanation:
Pythagorean theorem
hip² = op² + ad²
17² = x² + 8²
x² = 17² - 8²
The decimal of the fraction 2/7 is 0.2857142857
Answer:
739.47
Step-by-step explanation:
height - h, radius -r
V=hπ²r=5×3.14²×15=739.47
