Exam (elaborations)
SAT Math 2024 Questions with Correct Answers
- Course
- Institution
Exam of 5 pages for the course SAT at SAT (SAT Math 2024)
[Show more]
Content preview
SAT Math 2024(3^a)^2 - answeris equal to 9^a
(a^3)^3 times (a)^(-9) - answeris equal to 1
Polynomial expression - answerone or more terms with a coefficient, a variable base,
and an exponent.
Base of a polynomial - answerhas an exponent attached to it.
Slope less than 1 - answery is less than x
x^1 = x - answer3^1 = 3
x^0 - answer= 1
x^m * x^n - answer= x^m + n
x^m/x^n - answer= x^m-n
(x^m)^n - answer= x^mn
(xy)m - answer= (x^m)(y^m)
x^(-m) - answer1/x^m
If someone got a certain number of X questions correct, and a certain percentage of Y
questions correct, to find the percentage of correct answers... - answersolve for all the
numbers in the solution, and then find the percentage that comes from that.
When asked for the increase and decrease of a percentage of something... -
answerthink of it like x(percentage change times percentage change)
For example:
p(1.2 * 0.6 * 1.25)
x interest compounded annually means... - answer(Original deposit)(Percentage +
1)^(Time)
Semiannually - answertwice a year.
, When calculating COMPOUNDED Semiannually (or quarterly) - answerIf the yearly is
given, divided that percent in half before adding one. Then multiply the t by how many
times it is compounded per year (twice for semiannually.)
For interest that is compounded more than once a year - answera = p(1 + r/n)^tn
n is the number of times it is compounded per year.
Simple interest - answernot compounded
For simple interest... - answerA = P(1 + rt)
r = interest rate.
p = initial investment.
Percent change - answer((New value - old value)/old value) X 100
If a percent change is positive - answerit's percent increase.
If percent change is negative - answerit's percent decrease.
When calculating for percent change - answerdo not include the negative sign, as you
are only indicating how much the percent changed, not whether it goes up or down.
Don't give up if you followed the method... - answermake sure you can't change the
form of your answer (you can always change the form of fractions and decimals.)
Exponential growth - answeroccurs when each step is multiplied by a number greater
than one.
Exponential decay - answeroccurs when each step is multiplied by a number less than
one.
Y intercept - answeris found when x=0
Linear growth and decay - answera positive slope with no exponents.
Negative association vs. Positive association - answertwo ways to graph something
linearly.
Strong association - answerwhen data points are close to forming a clear, linear line up
or down.
When the height of a triangle is tripled - answerthe area is tripled.
To find how much the area of a polygon has changed when a certain element is
multiplied by a coefficient - answerthe goal is to move the number out to the front of the
variables.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79064 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now