Answer:
3.0 x 10^1
Step-by-step explanation:
Step 1) 4,500,000,000 / 149,600,000 = about 30
Step 2) 3.0 x 10^1 = 30
Try plotting the points on a graph, it might make it a bit easier to figure out an equation
Discriminant b^2-4ac = (-9)^2 - 4*2*9 = 9
so there are 2 roots
because of the -9x and 9 they will both be positive
Answer:
The number is 19
Step-by-step explanation:
7 less than a number = x - 7
2x - x - 7 = 12
Subtract x from 2x
x - 7 = 12
Add 7 to both sides of the equation
x = 19
The number is 19
Hope this helps :)
Answer:
2, 3, 5, 7, 11, 13, 17, 19, and 23.
Step-by-step explanation: