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Answers by Patricia S.

Hi, Anna!   I take this question to read:   "The cube [of a number] less the square of the [same] number is twice the number."   From here, we need to convert this english sentence into a math sentence.  Here are the key elements in the sentence: "a...

Hi, Taka!   To answer this question, you need to know which basic trig function goes with the reciprocal trig function of secant.  You will also need to have your double angle formulas handy.   Quick recap on basic vs. reciprocal trig functions:   Basic...

Hi, Ashley!   To find the derivative of this function, there are a couple of derivative rules you need to know: 1. Product Rule:  Part1 * (derivative of Part2) + (derivative of Part1) * Part2 2. Quotient Rule:  ho d hi - hi d ho        ...

Hi, Jenna!   First of all, since this forum is designed as a place for tutors to provide academic support to students, I am not going to answer all of the questions that you posted.  However, I will do a couple to help you get an idea of how to translate english sentences into...

Hi, Kitesha!   For this question (and the other question that you posted), you want to identify what all of the measurements refer to.  What is the common element in each measurement?  For instance, in this question, each side length of the triangle is given by referring to...

Word problem (answer)

Hi, Grace! These kinds of word problems can be tricky because it talks about more than one variable: the days that Walter gets paid $3.33 and the days that Walter gets paid 1/3 more (3.33 + (1/3)*3.33 = $4.44).  To solve any situation where you have more than one variable, you need to set...

Hi, Jasmyn!   The number of local maximums and minimums of a function are calculated by determining how many places have a slope of zero.  In other words, you need to answer the question "how many zeroes does the function f'(x) have?"   In this case, you...

math questions (answer)

Hi, Duane!   To find out how much tax is paid, you need to find 7% of $96.  If you translate the phrase "7% of 96" into a math equation, the word "of" means to multiply.  This gives you:   7% of 96 7% * 96   Now write 7% as...

Hi, Brooke!   The word "squared" means to raise a number to the power of two - so 2 becomes the exponent.   In the case of writing "9 squared", that would look like 92.   As a side note, the word "cubed" means to raise a number...

Hi, Mikia!   I assume that the question is asking for the real zeros of x4 - 5x3 + 6x2 - x - 2 = 0.  Based on that assumption, I would find the real solution values by graphing the equation on your graphing calculator and looking at where the function crosses...

Hi, Billy!   Word problems can be really tough!    Step 1: The first step to do is to pick out any important information that they give you.  Generally, anywhere a number is mentioned is important.  Identifying what you are solving for is also important. ...