Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

ACT Math Problems

QuestionAnswer
What is the equation of a circle with a center of (h, k)? (x-h)^2+(y-k)^2=r^2
What is the formula for finding the volume of a right cylinder? V= pi*r^2*h
Sine is ___/____? Opposite/hypotenuse
(2(a^3))^4=? 16(a^12)
The formula for calculating permutations is: n!/(n-r)!
A club has 10 members and wants to choose 3 officers, a vise president, a president, and a secretary. How many different slates of officers can be chosen out of ten members? 10P3= 10*9*8 = 720
How would you express two independent variables, such as rolling a dice and flipping a coin? Hint: (Multiple Events in probability) P(A and B) -or- P(A) * P(B)
Which set of numbers has the lowest Standard Deviation? 1, 5, 6, 9, 15; 1, 2, 5, 6, 7; 1, 9, 17, 23, 24 1, 2, 5, 6, 7
What is the Mode of this set of numbers? 2, 6, 5, 3, 4, 7, 6, 2, 6 6
Solve this system of equations using inverses (matrix): 2x -y = 4 6x+3y=24 [A]^-1 * [B] = [3] and [2]
How many 3-letter orderings, where no letter is repeated, can be made using the letters of the word POINT? 60 Explanation: 4 ways of 3 orderings = 12 * 5 letters = 60
Connor cut a rope 35 inches long into 2 pieces. The ratio of the lengths is 2:5. What is the length, to the nearest inch, of the longer piece? 25 inches Explanation: 2:5 -> 2+5=7 -> (5/7)*35=25
If a and b are positive rational numbers such that a^(2b)=4, then a^(4b)=? 16 Explanation: a^(4b) can be rewritten as a^2*2b=4^2, and 4 squared is 16.
(tanx)/(sinx)(cosx)=? 1/cos^2x
For which of the following values of c will there be 2 distinct solutions to the equation 3x^2+2x+c=0? A. -1 B. 1 C. 2 D. 4 -1
The graph of y=-2x^2-4 passes through the points (2, 3a) in the standard (x,y) coordinate plane. What is the value of a? -4 Explanation: substitute (2, 3a) into the equation and solve for a. 3a=-2(2)^2-4
Created by: 120809
Popular Standardized Tests sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards