Questions in Grade High-school

Questions in Grade High-school

[Homework Help] If [tex]a = b + 2[/tex], then what is [tex](b - a)^4[/tex]?

[Homework Help] When the following equation is balanced: \[ \text{C}_4\text{H}_{10} + \text{O}_2 \rightarrow \text{CO}_2 + \text{H}_2\text{O} \] What is the coefficient of \(\text{CO}_2\)? a. 2 b. 4 c. 8 d. 10 e. 13

[Homework Help] How much energy is contained in the mass of a 60-kilogram person?

[Homework Help] Find the sum of [tex]\frac{3b}{b+2}[/tex] and [tex]\frac{12}{b+2}[/tex], and express it in simplest form.

[Homework Help] Simplify the following expressions: 1. [tex]2(5x - 3) - (2x + 4)[/tex] 2. [tex]24x - 12y + \frac{40}{4}[/tex] 3. [tex](2x)(3y) + 2(-xy)[/tex]

[Homework Help] How do I solve this infinite geometric series? \[ \frac{64}{25} - \frac{16}{5} + 4 - 5 \]

[Homework Help] What do the epidermis and the dermis have in common?

[Homework Help] Mary is making a piñata that has a ball-like shape. The piñata has a surface area of 40 square feet. Use the formula for the surface area of a sphere: [tex]S = 4\pi r^2[/tex] to find the radius of the piñata. Round your answer to the nearest hundredth.

[Homework Help] How do you solve [tex]x^2 - 10x + 9 = 0[/tex] by completing the square?

[Homework Help] Who was the African-American who called the war with Mexico disgraceful and cruel, and why?