Answer: 91
Step-by-step explanation:
Answer:
72
Step-by-step explanation: 8 times 9 equals 72.
Hint: "4x 2 - 25 = 0" is nearly meaningless. You want 4x^2 - 25 = 0.
Note that both 4x^2 and 25 are perfect squares, so this is the difference of two squares, and is equal to (2x-5)(2x+5)= 0.
Answer:
1
Step-by-step explanation:
in to three decimal places
r-value =1
A. 2x3=6 and 6x12=72 so 78 is greater than 36
6+72=79 which is less than 90