Answer:Monomial, polynomial, binomial, trinomial, and multinomial.
Step-by-step explanation:
The correct answers are:
y = 15.4<span>x
</span>
y<span> = 16.4</span><span>x
</span>
(P.S: I took the quiz)
Answer:
see explanation
Step-by-step explanation:
the error in the question is that
sec²x =
≠
, and
csc²x =
≠ ![\frac{1}{cos^2x}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7Bcos%5E2x%7D)
have been used incorrectly in simplifying the expression
then
![\frac{tan^2x+1}{1+cot^2x}](https://tex.z-dn.net/?f=%5Cfrac%7Btan%5E2x%2B1%7D%7B1%2Bcot%5E2x%7D)
= ![\frac{sec^2x}{csc^2x}](https://tex.z-dn.net/?f=%5Cfrac%7Bsec%5E2x%7D%7Bcsc%5E2x%7D)
= ![\frac{\frac{1}{cos^2x} }{\frac{1}{sin^2x} }](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cfrac%7B1%7D%7Bcos%5E2x%7D%20%7D%7B%5Cfrac%7B1%7D%7Bsin%5E2x%7D%20%7D)
=
× ![\frac{sin^2x}{1}](https://tex.z-dn.net/?f=%5Cfrac%7Bsin%5E2x%7D%7B1%7D)
= ![\frac{sin^2x}{cos^2x}](https://tex.z-dn.net/?f=%5Cfrac%7Bsin%5E2x%7D%7Bcos%5E2x%7D)
= tan²x
Recall your d = rt, distance = rate * time
the buses are traveling in opposite directions, but both are taking off at the same time
let's say bus A is going at 63mph and bus B is going at 62mph, so, we know their "r" rate for each
ok, after they had travelled for "t" time, they're both 187.5 miles apart, at that instant, bus A has been travelling for "t" hours and bus B has been also travelling for "t" hours as well
now, if bus A covered say "d" miles in those "t" hours, then bus B covered the slack from 187.5 and "d", or 187.5 - d
thus
![\bf \begin{array}{lccclll} &distance&rate&time\\ &-----&-----&-----\\ \textit{bus A}&d&63&t\\ \textit{bus B}&187.5-d&62&t \end{array} \\\\\\ \begin{cases} \boxed{d}=63t\\ 187.5-d=62t\\ ----------\\ 187.5-\boxed{63t}=62t \end{cases}](https://tex.z-dn.net/?f=%5Cbf%20%5Cbegin%7Barray%7D%7Blccclll%7D%0A%26distance%26rate%26time%5C%5C%0A%26-----%26-----%26-----%5C%5C%0A%5Ctextit%7Bbus%20A%7D%26d%2663%26t%5C%5C%0A%5Ctextit%7Bbus%20B%7D%26187.5-d%2662%26t%0A%5Cend%7Barray%7D%0A%5C%5C%5C%5C%5C%5C%0A%5Cbegin%7Bcases%7D%0A%5Cboxed%7Bd%7D%3D63t%5C%5C%0A187.5-d%3D62t%5C%5C%0A----------%5C%5C%0A187.5-%5Cboxed%7B63t%7D%3D62t%0A%5Cend%7Bcases%7D)
solve for "t".
Hello there!
First add 1.19 + .89 = 2.08
Then, subtract 2.08 from 55 = 55 - 2.08 = <span>52.92</span><span>
The answer to your question is $52.92
Hope I helped!
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