Describe the transformation
f(x-2)+3
Shift (translate) 2 units RIGHT and 3 units UP
The number of zombies are tripling. If the zombie outbreak started with 5 zombies, write the equation that models the number on new zombies there will be each day.
z(x)=5(3)^x
Based on the calculator output for a dataset, determine the standard deviation of the data, rounding to 3 significant figures.
sigma=8.45
The following two-way frequency table summarizes how many students passed a test and completed the homework dur the day of the test. What is the probability that a student who passed the test complete the homework?
P(completed HW | Passed) =
16/20= 4/5 = 0.8
Solve for x. Round to 3 significant figures.
x=38.6
Find the missing side length a.
a=(4sqrt(3))/3
Describe the difference between
-f(x) and
f(-x)
-f(x) reflects over the x-axis
f(-x) reflects over the y-axis
$7100 dollars is placed in an account with an annual interest rate of 7.75%. How much will be in the account after 30 years, to the nearest cent?
f(30)=7100(1.0775)^30
f(30)=$66646.40
For the following dataset, find the mean, median, and mode.
81, 86, 87, 100, 113, 113, 120, 172
Mean = 109
Median = 106.5
Mode = 113
Given events A and B are independent and P(A) = 0.45 and P(B) = 0.72, what is
P(AnnB)
P(AnnB)=0.324
In triangle ABC, a=580 inches, b=340, and angle C=165 degrees. Find the area of triangle ABC to the nearest square inch.
Area
triangle ABC=25520
Given the following unit circle, draw the location of angle and create a reference traignle, then find the exact value of the function.
cos(150)=-sqrt3/2
Given the function
y=2^x
write the equation that is reflected over the x-axis and shifted 4 units LEFT
y=-2^(x+4)
A new car is purchased for $19,000. The value of the car depreciates at 11.25% per year. What will the value of the car be, to the nearest cent, after 14 years?
f(14)=19000(1-.1125)^14
f(14)=19000(0.8875)^14
f(14)=$3573.64
Based on the data represented from the bar graph:
1) how many total people were surveyed?
2) What is the mean number of social media posts made by students in a day?
1) Total students surveyed: 21
2) Mean = 4.29
Given P(A)=0.4, P(B)=0.56, and P(A and B)=0.274, find the value of P(A or B).
P(A or B) = 0.686
Find the measure for angle W.
angleW=41.0^o
Given the following unit circle, draw the location of angle and create a reference traignle, then find the exact value of the function. Find
sin(585^o)
Sin(495)=-sqrt2/2
The function for this graph is
f(x)=sqrtx
Write the equation for the dotted function.
y=sqrt(x+5)+3
Adam invested $24,000 in an account paying an interest rate of 2.8% compounded quarterly. Assuming no deposits or withdrawals are made, how much money, to the nearest dollar, would be in the account after 10 years?
y=2400(1+0.028/4)^(4(10))
y=$31,724
A math teacher is comparing students' homework grades to test grades to determine correlation.
Find the linear regression equation and correlation coefficient. Round all answers to 3 significant figures.
r = 0.938 (strong positive correlation)
y=1.55x-45.1
Given events A and B are independent with P(A)=0.15 and
P(A nn B)=0.096
, determine the value of P(B).
P(B) = 0.64
Find the volume of a pyramid with a square base, where the perimeter of the base is 12 cm and the height of the pyramid is 16cm. Round your answer to 3 significant figures.
Volume of pyramid = 48 cubic cm.
Write the equation of the trigonometric function shown in the graph in the form
y=Asin(Bx)+C or y=Acos(Bx)+C
y=2sin(x)-1
y=2^(-x)+3
Ellie invested $6,400 in an account paying an interest rate of 5.1% compounded daily. Assuming no deposits or withdrawls are made, how much money, to the nearest hundred dollars, would be in the account after 13 years?
y=6400(1+0.051/365)^(365(13))
y=$12,400
The number of newly reported crime cases in a town i shown in the table. Write the linear regression equation (round to the nearest hundredth). Using the equation, find the projected year for the number of new cases to be 665.
Linear Regression Equation: y = -21.63x + 858.90
Year of projected 665 new crime cases is 2010
Given P(A) = 0.35, P(B) = 0.24 and
P(AuuB)=0.406
find the value of
P(AnnB)
P(AnnB)=0.184
What is the diameter for a cylinder with a volume of 914 cubic feet and a height of 7.1 feet?
Diameter = 12.8 feet
Write the equation of the trigonometric function shown in the graph in the form
y=Asin(Bx)+C or y=Acos(Bx)+C
y=-2cos(1/3x)-1