Answer:
slope is 2/3.
Step-by-step explanation:
Answer:
Not sure Sorry i couldn't help
Step-by-step explanation:
Answer:
C. an= 9(1/3)n-1
Step-by-step explanation:
The decreasing curve means the base of the exponential factor is less than 1, eliminating choices B and D. The value of the term is 9 at n=1, so eliminating choice A.
The general form of the n-th term is ...
an = a1·r^(n-1) . . . . first term a1, common ratio r
so we expect to see an exponent of (n-1) when a1 is the value for n=1. If you match the pattern above to the answer choices, you see the only decision required is whether r=3 or r=1/3. The decaying curve of the graph shows you that r < 1, so the choice is r=1/3 and the formula is ...
an = 9(1/3)^(n-1) . . . . . . . parentheses are needed on the exponent
Answer:
$43.38
Step-by-step explanation:
Step 1 : find 20% of price
To do this, all you have to do is multiply the decimal version of the percent (20% --> 0.20) by your full price
36.15 × 0.20 = 7.23
Step 2 : add tip to total cost
now we get that tip we got in the first step and add it to 36.15
36.15 + 7.23 = $43.38
Answer:
0 and 1/2
Step-by-step explanation:
-2x^2 + x = 0
Solving using completing the square method
dividing through by -2, we have
x^2 - x/2 = 0
evaluate (b/2)^2
= (-1/(2x2))^2 = 1/16
adding it on both sides of the equation
x^2 - x/2 + 1/16 = 0 + 1/16
the new equation is therefore:
(x - 1/4)^2 = 1/16
taking the square root on both sides
x - 1/4 = ±√1/16
x - 1/4 = ± 1/4
therefore
x = 1/4 + 1/4 = 1/2
or
x = -1/4 + 1/4 = 0
