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

Estimate 53,695-15,836 by first riunding each number to the nearest thousand.

Entomologists have discovered that a linear relationship exists between the rate of chirping of crickets of a certain species and the air temperature. When the temperature is ${60}^{\circ <!--\; \circ \; -->}F$, the crickets chirp at the rate of 24 chirps/min, and when the emperature is ${90}^{\circ <!--\; \circ \; -->}F$, they chirp at the rate of 114 chirps/min.
(3 Find an equation giving the relationship between the air temperature x and the number or chirps per min y ofthe crickets.
$y=?$
b) Use this function to determine the rate at which the crickets chirp when the temperature is ${99}^{\circ <!--\; \circ \; -->}F$.
? chirps/min

What is the correct answer to this: $50+50-<!--\; -\; -->25\times <!--\; \times \; -->0+2+2$

$u=⟨<!--\; ⟨\; -->2,-<!--\; -\; -->4⟩<!--\; ⟩\; -->\text{ and }v=⟨<!--\; ⟨\; -->5,-<!--\; -\; -->3⟩<!--\; ⟩\; -->$. Find the angle between them to the nearest tenth of a degree

The line of best fit through a set of data is y=2.164-4.379x
According to this equation, what is the predicted value of the dependent variable when the independent variable has value 20?

Greg is covering a wall with equal-sized tiles that cannot be cut into smaller pieces. The wall is 66 inches high by 72 inches wide. What is the largest square tile that simon can use?
a) 9 in.
b) 16 in.
c) 36 in.
d) 64 in.

write 5 integers that have a mean of -10

Solve the equation.
$\frac{5x}{2}-<!--\; -\; -->3=\frac{2x-<!--\; -\; -->7}{6}$

Translate into an algebraic expressIon the quotient of the number of points and three.

Write a 5th degree polynomial that has an x intercept = -3, a root x = 1 with multiplicity of 2 and a factor of (x + 2i). Sketch the polynomial.

Suppose that $m\mathrm{\angle <!--\; \angle \; -->}S=m\mathrm{\angle <!--\; \angle \; -->}O$ and that $m\mathrm{\angle <!--\; \angle \; -->}I=4(m\mathrm{\angle <!--\; \angle \; -->}S)$. Find $m\mathrm{\angle <!--\; \angle \; -->}I$.

Factor the expression by removing the common factor with thesmaller exponent.
$6x^{1/2}(2x+3)+8x^{3/2}$

Find the least common denominator for the rational expressions and write the equivalent rational expressions with the LCD.
$\frac{11}{8x+40},\frac{4}{x^2+5x}$
The LCD is ?
Write the equivalent rational expression with the LCD.
$\frac{11}{8x+40}=?$
$\frac{4}{x^2+5x}=?$

If the slope of a linear line is 10 and if Y decreases by 20, then X

During a​ war, allies sent food and medical kits to help survivors. Each food kit helped 8 people and each medicine kit helped 4 people. Each plane could carry no more than 50,000 pounds. Each food kit weighed 20 pounds and each medicine kit weighed 10 pounds. In addition to the weight constraint on its​cargo, each plane could carry a total volume of supplies that did not exceed 4000 cubic feet. Each food kit was 1 cubic foot and each medical kit also had a volume of 1 cubic foot. Assume that those helped by medicine kits were not helped by the food kits and vice versa. What was the maximum number of people that could be helped with one plane of​ supplies? The maximum number of people that could be helped was ___ people

MY question is to write rational expression in simplest form.and the question is
$x^2-<!--\; -\; -->9/x^3+x^2-<!--\; -\; -->9x-<!--\; -\; -->9$

Angel’s scores on the first three algebra quizzes are 78, 66, and 94. What score must he earn on the fourth quiz to earn an average quiz score of 80? Please set up and solve this problem following the steps below:
A. Define the unknown quantity in terms of one variable.
B. Translate the question into an equation.
C. Solve the equation, showing all work.
D. Write a complete answer to the question asked.

24. Sarah’s parents are filling their swimming pool. Her pool holds 22,000 gallons. It takes 16 hours to fill. What unit would you use to represent the rate that water is flowing into the pool?
a. Hours
b. Gallons
c. gallons per hour
d. gallons per minute
25. What is (2.5 X 102)(6.3 X 105) in scientific notation?
a. 1.575 X 107
b. 1.575 X 106
c. 1.575 X 1010
d. 1.575 X 108

$\frac{1}{a}+\frac{1}{b}=c$ for b

How many millimeters of acid are in 30 ml of a 6% acid solution