Answer:
cot∅ = (-2√30)/7.
Step-by-step explanation:
Given the value of csc∅ = -13/7 and ∅ is in quad III.
We know y = r sin∅ and r > 0. So csc∅ = r/y = -13/7 = 13/(-7).
It means y = -7, r = 13.
We know x² + y² = r².
x² = r² - y²
x² = (13)² - (-7)² = 169 - 49 = 120.
x = √120 = 2√30.
we know cot∅ = x/y = (2√30)/(-7) = (-2√30)/7.
Hence, cot∅ = (-2√30)/7.
Answer:
You should purchase the cereal at Weis
Step-by-step explanation:
the first options gives a rate of 25 cents per oz. the option that Weis offers is a rate of (0.1875round that up to 19) 19 cents per oz.
Note that when rounding, if the number is:
5 or greater, round up
4 or less, round down
43.68532 rounded to the nearest dollar is 44, as 6 rounds up
$44 is your answer
hope this helps
Step-by-step explanation:
a parabolic graph is given by the equation ax^2 + bx + c
the axis of symmetry is equal to -b/(2a)
however it is worth noting that all parabolas have a y intercept since their domain is all real numbers.
make sure to inform me if you need further guidance.
