Answer:
(59) = 20
Step-by-step explanation:
(x) is the inverse of f(x)
to find the inverse function, let f(x) = y and rearrange to make x the subject.
y = 3x - 1 ( add 1 to both sides )
y + 1 = 3x ( divide both sides by 3 )
= x
change y back into terms of x with x = (x) , then
(x) = 
, then
(59) = 
= 
= 20
Answer. z = ± √10 = ± 3.1623
Answer:
7.2
Step-by-step explanation:
Do 6^2 = 36
Do 4^2 = 16
Add them which equal 52
Square root of 52 is 7.2 to 1 decimal Place this is a possible length
I am not sure how the answer is coming up as an "m+1+ or "m<span>-1" I am a ... </span>Factor<span>: : </span>4m^2<span> -18m + 14. We can simplify this, </span>factor<span> out </span>2 2(2m^2<span> - 9m + 7) ... FOIL (</span>5m+3)(m+1) : 15m^2<span> - </span>10m<span> - 25. </span>Factor<span> out </span>5 5(3m^2<span> - 2m - </span>5<span>) </span>Factors<span> to </span>3<span>(3m - </span>5)(m<span> + 1) FOIL this to confirm it : 50m^</span>3<span> - 2m. Simplify, </span>factor<span> out 2m 2m(</span>25m^2<span> - 1)</span>
Answer:
$1030
Step-by-step explanation:
Last winter:
Total expense = 370 * 2.56 = $947.2
Next year,
price increases 9% per gallon
which means, per gallon cost is $2.7904
Approx. expense = 370 * 2.7904 = $1032.448 which is round down to $1030
