9514 1404 393
Answer:
y = 1 · 5^x
Step-by-step explanation:
Use the given values in the given formula and solve for 'a' and 'b'.
y = a·b^x
5 = a·b^1 . . . . . . for (x, y) = (1, 5)
125 = a·b^3 . . . . for (x, y) = (3, 125)
Divide the second equation by the first:
125/5 = (a·b^3)/(a·b^1)
25 = b^2 . . . simplify
5 = b . . . . . . . take the square root
Substituting into the first equation, we can find 'a':
5 = a·5
1 = a . . . . . . . divide by 5
Written in the given form, the equation is ...
y = 1 · 5^x
There answer should well be -24 you take the sign from the greater digit and if it's different digits you subtract but I'm this case were dividing and -24 ÷4 = -6
Answer:
$25.90
Step-by-step explanation:
39.99 - 40% = 23.99
23.99 TIMES 8% = $1.91
23.99 + 1.91= $25.90
Tried a whole bunch of odd sequences:
11 + 13 + 15 = 39
Nope too small.
21 + 23 + 25 = 69
Woah too big!
And after a few more trials found that:
17 + 19 + 21 = 51
Woohoo!
Answer:
Step-by-step explanation:
-3(x-4)=2x+4x+5
distribute -3 into (x-4)
-3x+12=2x+4x+5
combine like terms
-3x+12=6x+5
subtract 6x on both sides
-3x-6x+12=5
combine like terms again
-9x+12=5
subtract 12 on both sides
-9x=-7
divide both sides with -9
x=
hope this helps
