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Hooked on Conics!
Let's Blog this Log!
Exponentials are Sensational!
...And that's Stats!
Blast of the Past
100
(x-h)^2+(y-k)^2=r^2
What is a circle?
100
change of base...log7 12
What is 1.277
100
eponential decay or growth... y=9(3/4)^x
What is exponential decay?
100
probability of tossing a coin 25 times and getting heads 18 times.
What is 0.0143
100
Solve the Linear System. -3x+3y=3 3x+y=9
What is (2,3)?
200
opens right or left...y^2= -2x
What is left?
200
expand...log7 x^2y
What is 2log7 x+log7y
200
rewrite in exponential form... log7 49=2
What is 7^2=49
200
calculate prbability of k successes... k is greater than or equal to 4, n=8, P=0.16.
What is 0.0267?
200
distance... r=45 mi/h, t=7h.
What is 315 mi?
300
standard form of equation...circle passes through (-2,-4) and the origin.
What is x^2+y^2=20
300
inverse... y=log7x
What is f^-1(x)=7^x
300
compounded quarterly...deposit is $2200 ans you pay 3% annual interest. 15 years later you withdraw your money.
What is $3444.50
300
mean of 25 and standard deviation of 5... probability of at least 20.
What is 0.84?
300
tell whether order pairs are solutions... 2y<5x+10; (-2,-1) (-1,2)
What is yes?
400
list the vertices, co-vertices, and foci...x^2/48+y^2/27=3
What is vertices: (12,0), (-12,0) co-vertices: (0,9), (0,-9) foci: (7.937,0), (-7.937,0)
400
condense...log3 4+ log3 5- log3 2- log3 6
What is log3(5/3)
400
find the zeros...f(x)= -ln x
What is x=1
400
mean of 70 and a standard deviation of 10... probability that x is less than or equal to 47.
What is 0.0107?
400
distance... (6,1,0) and (9,4,0).
What is 3 square root 2?
500
classify...18x^2+10y^2-108x-100y+232=0
What is ellipse?
500
simplify...(2e^-4/6)^-3
What is 27e^12
500
state domain and range...f(x)=1/2e^x-2 -3
What is all real numbers (domain); y>-3 (range)
500
12% of people wear contacts in a school of 1075 students...probability that 118 wear contacts.
What is 0.16
500
classify... 9x^2-y^2-72x+8y+119=0
What is a hyperbola?