Questions in mathematics

Questions in mathematics

[Done] Write a set of parametric equations for [tex]y = x^2 + 1[/tex] given the parameter [tex]t = x - 2[/tex].

[Done] Calculate the expression: \[ 10 + 3(2xz + 3y)2xz \] What is the answer?

[Done] The Computer Store has reduced the price of a computer by 15%. What is the original price of the computer if the sale price is $1275?

[Done] Patrick ate \(\frac{3}{5}\) of a small pizza. For lunch on Saturday, he ate \(\frac{1}{2}\) of the leftover pizza. How much pizza did he eat for lunch on Saturday?

[Done] Explain how you would find the base area of a rectangular prism if you know the volume and the height.

[Done] A man with a mass of 81 kg lies on the floor. What is the normal force on the man? A. 855 N B. 794 N C. 713 N D. 820 N

[Done] Find the percent of decrease from 1800 to 1200.

[Done] Which expression is equivalent to \((x^2 + 3x - 4)(x - 5)\)? 1) \(x^3 + 8x^2 - 19x + 20\) 2) \(x^3 - 2x^2 - 19x + 20\) 3) \(x^3 - 2x^2 - 11x + 20\) 4) \(x^3 - 8x^2 - 11x + 20\)

[Done] The formula for converting degrees Celsius to Fahrenheit is \( F = \frac{9}{5} C + 32 \). Which expression is correctly written to convert Fahrenheit temperatures into degrees Celsius? 1) \( C = \frac{9}{5} F + 32 \) 2) \( C = \frac{5}{9} F - 160 \) 3) \( C = \frac{5(F - 32)}{9} \) 4) \( C = 32F + 160 \)

[Done] The base of a square pyramid has a side length of 6 inches. The height of the pyramid is 12 inches. What is the volume of the pyramid? A. 108 in³ B. 36 in³ C. 72 in³ D. 144 in³