Answer:
ok so this awnser is v7a
Step-by-step explanation:
1) a
2) c
#1 explanation:
x^4-20x^2=-64
x^4-20x^2+64=0
(find a number that multiplies to the last number aka 64 and adds up to b aka 20)
((x-4)(x-16))^2
x= -2,2,-4,4
same for #2 w different variable and numbers
Order 3/8, 3/7, and 3/9 from least to greatest without writing equivalent fractions with a common denominator explain your Strategy
3/9 3/8 3/7
The greater the denominator, the smaller the pieces are. Thus, numbers with equivalent numerators but smaller denominators will be larger than those with larger denominators.
Is 0.7 greater than less than equal to 7/9
Less than. 7/9 is 0.77777....
E would be your answer because the two negatives become a positive
