Questions in mathematics

Questions in mathematics

[Free] Which equation does not represent a linear function of x ?

[Free] Leg Riddles - People have 2 legs - Cats have 4 legs - Spiders have 8 legs There are 30 legs in a house, and all of them belong to animals. How many animals and people are in the house?

[Free] If k is a number so that the sum of k and any number in the set above is also in the set, what is the value of k?

[Free] The radius of the Earth's orbit is 45,000,000 meters. What is the number in scientific notation?

[Free] What is the slope of a line if it passes through the points (0, 0) and (3, 6)? 1. Find the y-intercept of the line. 2. Write an equation for the line using your answers. 3. Find one more point that lies on the line. 4. Explain why that point is also a solution to the function. Please explain your answers for better understanding. Thank you!

[Free] What is the answer to \((p-3) + (p-7)\)?

[Free] What is \(\left\{[2+3]4_{15}\right\} \frac{45}{45}\)?

[Free] Solve the equation: \[\frac{1}{4}(3c+5) - \frac{1}{2}(2c+3) = \frac{1}{2}\] Please show your work to help understand the solution process.

[Free] A parrot is selling for 40% off the original price. The original price was $90. What is the sale price of the parrot?

[Free] The perimeter \( p \) of a regular hexagon varies directly with the length \( l \) of one side of the hexagon. 1. What is an equation that relates \( p \) and \( l \)? 2. What is the graph of the equation?