13) Sales: Weekly sales s (in thousands) of a new basketball shoe increase steadily for a while and then decrease as described by the function
S=-2|t-15| + 50
where t is the time (in weeks).
a) Graph the function on your graphing calculator.
Tell what viewing window you used.
X-min:
y-min:
X-max:
y-max:
X-scl:
y-scl:
b) What is the greatest number of pairs of shoes sold in a week?
After how many weeks was this?
c) How could you have answered 13b without actually graphing on the calculator
d) At how many weeks were 30,000 pairs of shoes solde

maybe - definition of supplementary angles. im not sure. sorry

step-by-step explanation:

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.

answer: two angles are called supplementary if they add up to 180°. example: the two angles (140° and 40°) are supplementary because they add up to 180°.

step-by-step explanation:

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629