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 ( 62+ )
Otras preguntas
The Constitution gives which of the following powers to the Vice President? a. exercise broad executive power b. lead his or her political party c. preside over
What is one reason why Thomas Paine says that the time for independence is now? a. Because the British have vulnerable islands b. Because the British are dist
Mood is __________. a. determined at the end of a story b. determined by the number of characters in a story c. the reader's feeling and reaction to a story d.
You must always____your sources. a. cite b. site c. sight d. cight
find two numbers whose sum is 15 and whose product is 36
Which one of the following words is an irregular noun plural? a. Geese b. Animals c. Automobiles d. Houses
Which of the following is an example of "scientific" socialism in North America? a. the commune in Roxbury, Massachusetts b. the Democratic Party c. the preside
Today, Australia and new Zealand have diverse populations. a. True b. False
The main reason self-confidence is important in human relations is because a. self-confidence makes you seem more interesting to other people. b. forming relati
Considering the European nations already had defined alliances, do you think that war would have been inevitable? Must be in Three to five sentence :/
