Math

Question 1

3xsquared + 2x squared

Answer 1

5x squared (dont add exponents)

Question 2

(2x) squared

Answer 2

2squared xsquared

Question 3

multiple of 9

Answer 3

sum of interger digit is a multiple of 9

Question 4

All prime numbers

Answer 4

2,3,5,7,11,13,17,19

Question 5

If a is divisible by b and b is divisible c

Answer 5

then a is divisible by c as well

Question 6

If d has e and f as primee factors, d is also divisible by e x f

Answer 6

90 is divisible by 3 and 5 so 90 is also divisible by 15

Question 7

“Greatest number that x must be divisible by”

Answer 7

Is code for 8,12,5

Question 8

Is a number is divisible by 18?

Answer 8

Yes if its divisible by 2 and 9

Question 9

If 2499 divisible by 147 is 2499 divisible by 49

Answer 9

if 2499 is divisible by 147 its divisible by all of 147 factors therefore it is also divisible by 49

Question 10

If q is divisible by 2, 6, 9, 12 is q divisible by 8

Answer 10

8 = 2x2x2 12 has most twos so factor that out

Question 11

square a proper fraction

Answer 11

get a smaller number

Question 12

x is divisible by 24 determine whether each statment must be true could be or cannot by

Answer 12

x is divisbile by 6= must be true
x is divisbile by 9= could be true
x is divisble by 8 = must be true

Question 13

If 6 and 14 are factors of y must y be divisible by 21

Answer 13

yes

Question 14

xsquared=625

Answer 14

x= +/- 25