Questions in Grade High-school

Questions in Grade High-school

[Homework Help] 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) \(x^3 - 8x^2 - 11x + 20\)

[Homework Help] 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) \( C = 32F + 160 \)

[Homework Help] Samuel's Car Service charges a flat travel fee of $4.75 per trip. They also charge an additional rate of $1.50 per mile traveled. What is an equation that represents the charges? 1) \( y = 1.5x + 1.5 \) 2) \( y = 4.75x + 4.75 \) 3) \( y = 1.5x + 4.75 \) 4) \( y = 4.75x + 1.5 \)

[Homework Help] What are the possible values for x in the equation [tex]4x^2 = 64[/tex]? 1) [tex]x = 0[/tex] 2) [tex]x = 4[/tex] 3) [tex]x = 4, -4[/tex] 4) [tex]x = 0, 4, -4[/tex]

[Homework Help] A jet travels 3950 miles from Chicago to London and then returns. The total flying time for the round trip is 16.5 hours. The return trip takes longer due to the wind. If the jet's average speed with no wind is 485 mi/hr, what is the average speed of the wind during the round trip flight? Round to the nearest mi/hr.

[Homework Help] Given the equation: \[(3x + 2)(2x - 5) = ax^2 + kx + n\] What is the value of \(a - n + k\)?

[Homework Help] Use long division to find the quotient, \( q(x) \), and remainder, \( r(x) \). \[ \frac{x^2 - 2x - 15}{x - 5} \]

[Homework Help] If \(4 (\log_3 \frac{1}{27}) = X\), what is the value of \(X\)?

[Homework Help] In order to separate two substances by fractional crystallization, the two substances must differ in which of the following? A. Solubility B. Specific gravity C. Vapor pressure D. Viscosity E. Freezing point

[Homework Help] Is [tex]\frac{1}{8}[/tex] greater or less than [tex]\frac{1}{4}[/tex]?