tbianiceosmu79
tbianiceosmu79
09-05-2018
Mathematics
contestada
Help !! What’s the answer ??
Respuesta :
umisantosp6d6e9
umisantosp6d6e9
09-05-2018
10(x^2) = 90x where x > 0 or x < 0
Factor by 10x on each sides
10x(x) = 10x(9)
x = 9
Answer Link
mkryukova19
mkryukova19
09-05-2018
A number is n.
The square of a number is n ².
10 times of the square of a number is 10n².
90 times the number is 90n.
10n²=90n
n²=9n
n²-9n=0
n(n-9)=0
n=0
,
n-9=0,
n=9
Non-zero number is 9.
Answer Link
VER TODAS LAS RESPUESTAS ( 93+ )
Otras preguntas
A change of the DNA in an organism that results in a new trait is known as a?
Find the fifth term of (2x + y)^10
Which colony was the first to promote religious tolerance?
Which of the following fractions is equivalent to 3/8!is it 6/14,9/24,4/9,15/35
According to modern ideas, the first step in the origin of life was ___________________
the product of 6 and 1 3/4 is it less than 6 equal to 6 or greater than 6
exact square root of 90
Estimate the maximum error made in approximating e^x by the polynomial 1 + x + {1}/{2}x^2 over the interval x of [-0.4,0.4].
Factor this polynomial completely over the set of complex numbers. x^3-x^2-4x+4
Solve the system using any algebraic method. Show all your steps. 19. 2x-5y=3 -4x+10y= -6 20. 8x+3y=10 -6x + y = -12
