\(h(t) = -16t^2 -24t+160 = 8(-2t^2-3t+20)\\~\\ h(t) = 0 \Rightarrow (2t^2+3t-20)=0\\~\\ t \dfrac{-3\pm \sqrt{9+160}}{4} = \dfrac{-3\pm 13}{4} = \dfrac 5 2,-4\\~\\ \text{Clearly $\dfrac 5 2s = 2.5s$ is the solution we want}\)
\((x+2)^2 + (y+7)^2 = 81 = 9^2\\~\\ \text{you can read the center right off as $(-2,-7)$ and the radius as $9$}\)
\((49+7+1)(A+B)= (49+7+1)6\\~\\ A+B=6,~A,B \in \{1,\dots, 6\}\\~\\ (A,B) = (1,5),(2,4),(3,3),(4,2),(5,1)\)
https://web2.0calc.com/questions/help_40221#r1
What do you mean how do you use them?
Do you mean how do you get the arctan on the calculator?
Or do you mean in what sort of problems does the arctan come up?
To convert any number to a percentage multiply it by 100. 2 becomes 200%
To convert any percentage to a number divide it by 100. 0.58% becomes 0.0058
sigh, it sure is. Add 14 and -14 to the list bringing it to 12 possible rational roots.
any rational roots are a factor of the constant term divided by a factor of the coefficient of the highest degree term.
here the constant term is -14 with factors +/- 1, +/- 2, +/- 7 +/- 14
and the leading coefficient is 7 with factors +/- 1, +/- 7
thus we have possible rational roots
+/- 1/7
+/- 2/7
+/- 1
+/- 2
+/- 7
+/- 14
a total of 12 possible rational roots
the number of popcorn pieces in a bag of small popcorn sold at a given movie theater y/n
yes
the heights of all the people on a field trip that is made up of first-graders and their teachers y/n
no
the values of the coins collected from a parking meter y/n
the heights of the players in a basketball league y/n
Don't be so lazy.
+6252 