Demystify Equations, Expressions, and Inequalitie with Expert Help

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Equations, expressions, and inequalitie

Recent questions in Equations, expressions, and inequalitie

ahredent89 2022-08-06

Solve for k.
$\frac{- 5}{4} k + \frac{1}{4} = - 7 - \frac{6}{7} k$

heelallev5 2022-08-06

Identify the terms and factors for each expression or equation
expression or equation terms factors(S)
1) 5x
2) $5 x - 8 = 0$
3) $x (5 x - 8) = 0$
4) x
5) $(5 x - 8) (y + 7)$

fotaczkak4 2022-08-06

The annual net income of General Electric for the period 2007-2011 could be approximated by
$P (t) = 1.6 t^{2} - 15 t + 16$ billion dollars $(2 \leq t \leq 6)$ , where t is time in years since the start of $2005^{6}$ . According to the model, during what year in this period was General Electric's net income lowest? What was the corresponding net income? Would you trust model to continue to be valid long past this period? Why or why not?

Marco Hudson 2022-08-06

An investor has $75,000 to invest in a CD and a mutual fund. The CD yields 9% and the mutual fund yields 8%. The mutual fund requires a minimum investment of $10,000, and the investor requires that at least twice as much should be invested in CDs as in the mutual fund. How much should be invested in CDs and how much in the mutual fund to maximize the return? What is the maximum return? To maximize income, the investor should place $ in CDs and $ in the mutual fund.

magda8471 2022-08-06

identify the domain and range of the function
input output
0 5
1 7
2 15
3 44

allucinemsj 2022-08-06

Solve the inequality and graph the solution:
$4 r \leq 16$

Ebone6v 2022-08-06

Rewrite the expression as an equivalent expression that doesnot contain powers of trigonometric functions greater that 1.
$8 \cos^{2} x$

imire37 2022-08-06

How many solutions does this system of equations have? $y = 0.5 x + 82 x - 4 y = - 3$ no solutions infinitely many solutions one solution

balafiavatv 2022-08-05

Yesterday, Christine went on a bike ride. Her average speed was 10 miles per hour. Today, she went on another ride, this time averaging 13 miles per hour. In the two days, she biked for a combined total time of 11 hours. Let x be the number of hours she biked yesterday. Write an expression for the combined total number of miles she biked in the two days.

musicintimeln 2022-08-05

Use a property of equality to solve the equation.
-w= 11/16

Flambergru 2022-08-05

Four more than the number of weeks in a group of days

polissemkt 2022-08-05

If the columns of an n x m matrix A are linearly independent as vectors in Rn, what is the rank of A?
If the rows of a matrix A are linearly independent as vectors in Rn, what is the rank of A?

Holzkeulecz 2022-08-05

$f (x) = 2 - 3 x^{2}; x = 3, x = 3 + h$
a) Determine the net change between the given values of the variable.
b) Determine the average rate of change between the given values of the variable.

traquealwm 2022-08-05

Solve for x.
-2(x-4)-15=-3(x+3)
x=

Filipinacws 2022-08-05

Solve, graph, and write the solution in interval notation
1. $- 3 < x + 3 \leq 3$
2. $5 \leq 2 x - 1 \leq 9$
3. $- 22 \leq 4 y - 2 < - 10$
4. $2 x < 8 and x + 11 > 6$
5. $x \geq - 9 and x + 2 < 2$
6. $- 3 (x + 2) \geq 0 and x + 9 \leq 1$
7. $x < 5 and x - 4 \geq 3$
8. $x + 1 \geq 4 and x - 6 \geq 2$
9. $x + 8 \geq 15 or 5 x \leq 30$
10. $x - 3 \leq - 9 or x + 4 \geq 3$

latinoisraelm1 2022-08-05

A survey was completed by individuals who were currently on the Zone diet exercise program (E), taking diet pills (P), or under medical supervision (M).
$\begin{array}{cc} Supplements & E & P & M & Totals \\ Diet & Z & 127 & 88 & 68 & 283 \\ S & 107 & 68 & 56 & 231 \\ W & 131 & 45 & 42 & 218 \\ Totals & 365 & 201 & 166 & 732 \end{array}$
Find the number of surveyed people in each of the following sets.
a) $S \cap E$
b) $Z \cup M$
c) $S^{'} \cap (E \cup P)$
d) $(Z \cup S) \cap (M^{'})$
e) $W^{'} \cap (P \cup M)^{'}$
f) $W^{'} \cup P$

Marco Hudson 2022-08-05

find n(A)
A={0,1,2,3,...,3000}

Yair Valentine 2022-08-05

839 is 177% more than what number?

Leypoldon 2022-08-05

Let X, Y be two nonempty sets and let $f : X \to Y$ . For a, $b \in X$ we write $a \sim b$ iff $f (a) = f (b)$ .
a. Prove that $\sim$ is an equivalence relation on X.
b: Write $[x]_{\int}$ for the equivalence class of $x \in X$ with respect to $\sim$ . Express $[x]_{\int}$ in terms of the function $f : [x]_{\int} = {x^{'} \in X : f (x^{'}) . . . ? ? . . .}$ (I do not want to see $" [x]_{\int} = {x^{'} \in X : x^{'} \sim x} " .)$

Nica2t 2022-08-05

Find all numbers k such that $x^{2} + 2 x + k = 0$ has no real solutions.

Contrary to a popular belief, equation in math also contains things like inequalities and expressions that require logic and verbal explanations. This is where equation help becomes useful as you look at the answers below. See equation problems submitted by students like you and explore the answers. It will help you to understand the logic as you approach equation algebra and study expressions examples. These are not as complex as they may seem once you learn how to connect expressions and equations and understand them as a finite combination of symbols, depending on use.

Pre-Algebra

Equations, Expressions, and Inequalities Q&A: Get Expert Help and Learn from Real-World Examples