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Questions in Grade College

[Done] A room fire has a heat release rate of 1000 kW. What will be the flame length of the fire in the middle, against a noncombustible wall, and in a corner of the room?

[Done] When is it legal to drive across the median of a divided highway? A. It is never legal to drive across the median of a divided highway. B. When making a U-turn. C. When an "authorized vehicles" sign is posted. D. When there is grass on the median. E. When the median is paved.

[Done] What is true about the completely simplified sum of the polynomials $3 x^2 y^2-2 x y^5$ and $-3 x^2 y^2+3 x^4 y$? The sum is a trinomial with a degree of 5. The sum is a trinomial with a degree of 6.

[Done] What is meant by "Least Restrictive Environment (LRE)"? A. Students with disabilities will be educated in environments that are least restrictive to their physical and educational needs. B. Students with disabilities are educated with students without disabilities to the maximum extent appropriate. C. Restraints will not be used in the educational environment unless expressly stated in the student's IEP.

[Done] $\begin{array}{l} y<5 x+2 \\ y \geq \frac{1}{2} x+1 \end{array}$ Is (-1,3), (0,2), (1,2), (2,-1), or (2,2) a solution?

[Done] Which expressions are equivalent? $\frac{1}{5} k-\frac{2}{3} j$ and $-\frac{2}{3} j+\frac{1}{5} k$ $\frac{1}{5} k-\frac{2}{3} j$ and $-\frac{1}{5} k+\frac{2}{3} j$ $\frac{1}{5} k-\frac{2}{3} j$ and $\frac{1}{5} j-\frac{2}{3} k$ $\frac{1}{5} k-\frac{2}{3} j$ and $\frac{2}{3} j-\frac{1}{5} k$

[Done] Now that you've created your hypotheses, it's time to prove them. First, look at the sum of two rational numbers. Let's say they are two rational numbers, [tex]$x$[/tex] and [tex]$y$[/tex]. Because they're rational, they can be written as a ratio of integers. Let [tex]$x=\frac{a}{b}$[/tex] and [tex]$y=\frac{c}{d}$[/tex], where [tex]$a, b, c$[/tex], and [tex]$d$[/tex] are integers and [tex]$b$[/tex] and [tex]$d$[/tex] do not equal 0. The process for finding the sum [tex]$x+y$[/tex] in terms of [tex]$a, b, c$[/tex], and [tex]$d$[/tex] is shown. Based on this sum and using the closure property of integers, what conclusion can you make about the sum of two rational numbers? Explain your answer.

[Done] Using the information in the table, calculate the average atomic mass of strontium. Report to two decimal places. [tex] \square [/tex] amu | Strontium | |---|---|---| | Isotope | Mass (amu) | Abundance | | Sr-84 | 83.913428 | 0.56% | | Sr-86 | 85.909273 | 9.86% | | Sr-87 | 86.908902 | 7.00% | | Sr-88 | 87.905625 | 82.58%

[Done] $3-(-3)+7-4=$ A) 2 B) 12 C) 9 D) 14

[Done] 1. A line passes through (2, –1) and (8, 4). a. Write an equation for the line in point-slope form. b. Rewrite the equation in standard form using integers.