There is a sample word problem in a textbook about creating a quadratic function in vertex form to model the word problem. I understand solving the problem, however, what I do not understand about the example is when only the variable "k" is converted from inches to feet, while the variable "a"...
I have an expression in which I am not sure which way to translate it, in order to solve it, it is the following:
\frac{-5}{-5+25}
\frac{-5}{20}
-\frac{1}{4}
The arithmetic above gave me a correct answer in my question, however I looked at the expression again and wondered if there was...
Right. I was more confused with y−6−(2)(2y+5)=−28 in regards to multiplying either 2 vs -2 to the 2y+5...................................(edited - those parentheses are important)
\frac{y-6}{4}-\frac{2y+5}{2}=-7
(4)\frac{y-6}{4}-(4)\frac{2y+5}{2}=(4)-7
Where I have an issue: ()I don't know whether to distribute [MATH(2)][/MATH] or (-2) to the (2y+5) (How do I decide what to distribute?)
y-6-(2)2y+5=-28
What I want to do it, but I get a wrong answer:
y-6-4y+10=-28...
I have the following binomial fraction:
\frac{6x+12}{6x-5}
Why can I not simpliify this equation by canceling out the 6x on the top and bottom, then only be left with \frac{-12}{5}? Whatever the value of 6x is, shouldn't I be able to cancel it out? Why am I not allowed to cancel it out? I...
Ok, so I guess I mostly just need to check that my answer to a solution gives equality in the equation if I plug it back in, to make sure that it is not an extraneous solution?
The extent of the square root goes over all constant and variables on both sides of the equation. I don't know how to format the full square root, is there any wiki on how to do it?
I was solving the following problem, but am unsure if it is ok to solve it the way I am doing it, because I am afraid that I am changing the content of the answer. Here is the problem I was working on:
Solve for v, where v is a real number.
√8v-11 = √6v+9
What I would do to solve this...
Got ya, thank you very much! I guess it's just better to work with geometrical reasoning by using square root amounts instead of decimal approximations.
Hi, is there a way to mathematically come up with coordinates in a unit circle from a given radian/degree reference/coterminal angle? For example, if I am given a 30 degree angle I can look up a unit circle diagram and see that it's corresponding unit circle coordinates are (√3/2, 1/2), but is...
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