Random math questions With Explanations Of Answers 100%.

1+1=? - correct answer 2 12*9=? - correct answer 108 46*12=? - correct answer 552 Simplify: (x+4)*(2x+5) - correct answer 2x squared+13x+20 Factor: x²- 324 - correct answer (x+18)*(x-18) or (-x+18)*(-x-18) 2⁻³ - correct answer 1/8 Systems of equations: solve using elimination method X+2y-z = -6 3x-y+z = 8 4x-y-2z = 0 - correct answer y = -2 x = 1 z = 3 Systems of equations: solve using substatution method y-6x = -15 z-3x = 2 x+2y+3z = 86 - correct answer x = 5 y = 15 z = 17 What is 29²? - correct answer 841 What is the sqaure root of 289? - correct answer 17, -17 5(4x+11)+3(2x+4)=347 x=? - correct answer x=11 -35023+847=? - correct answer -34176 What is 8³? - correct answer 512 What are the first 10 digits of pi? - correct answer 3. There are 640 marbles in a bag. There are red, blue, and green marbles. After losing a total of 47 green and blue marbles, there are a total of 113 green and blue marbles left. Assuming you still had all the marbles, what are the odds of drawing a red marble two times in a row? - correct answer 9/16 4 pencils have the same value of 3 pens. One pen is 1/3 the cost of stapler. Two staplers are worth 3 packets of notecards. How many pencils are worth one packet of notecards. Express your answer as a common fraction. - correct answer 8/3 Nine consecutive integers add up to 9. What is the product of these integers? - correct answer 0 What is the square root of the quantity of 2013³ - ((2012*5²+ 25) all over 25)³? - correct answer 0 Bob did one random math fact on the first day, two random math facts on the second day, three random math facts on the third day, and so on. On which day will he do his 97th random math fact? - correct answer 14 What is the units digit of 8 to the 97th?