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Questions in Grade College

[Answered] What is the $y$-intercept of the quadratic function $f(x)=(x-6)(x-2)$? A. $(2,0)$ B. $(0,12)$ C. $(-8,0)$ D. $(0,-6)$

[Answered] Find the missing number in the proportion. [tex]$\frac{10}{6}=\frac{100}{d}$[/tex]

[Answered] Now we will set up the Synthetic Division: 8. What is the solution after we perform the synthetic division? Quotient = $\square$

[Answered] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Answered] Consider the following intermediate reactions: [tex] \begin{array}{ll} CH_4(g)+2 O_2(g) \rightarrow CO_2(g)+2 H_2 O(g) & \Delta H_1=-802 kJ \\ 2 H_2 O(g) \rightarrow 2 H_2 O(l) & \Delta H_2=-88 kJ \end{array} [/tex] The overall chemical reaction is as follows: [tex]CH_4(g)+2 O_2(g) \rightarrow CO_2(g)+2 H_2 O(l) \quad \Delta H_2=-890 kJ[/tex] What is the correct enthalpy diagram using Hess's law for this system? [tex]CH_2(a)+2 O_2(g)[/tex]

[Answered] Which of the following is used to specify an alternate key? A. Composite Key B. Unique Key C. Foreign Key D. Primary Key

[Answered] Science 7-Module 11-Wave Reflection Assignment (16 pts) Student Name: Wave Reflection Directions: Now that you have learned about wave reflection, complete the following. Part 1 1. Lay a slinky (from your science kit) on a table and hold both ends. Stretch the slinky across the length of the table and push the slinky towards the right with your left hand. a. What type of wave was created? How do you know? (2pts)

[Answered] Calculate the enthalpy of each reaction per mole of reactant using the formula below, which also converts joules to kilojoules. Record to 2 significant figures. $\Delta H=\frac{-q}{\text { moles }} * \frac{k J}{1000 J}$ Reaction 1: $\square$ $kJ / mol$ Reaction 2: $\square$ $kJ / mol$

[Answered] Which of the following represents the factorization of the polynomial below? [tex]$x^2+13 x+42$[/tex] A. [tex]$(x+7)(x+6)$[/tex] B. [tex]$(x+9)(x+4)$[/tex] C. [tex]$(x+5)(x+8)$[/tex] D. [tex]$(x+21)(x+21)$[/tex]

[Answered] What is the purpose of a library walk? A. to generate a topic for a response to literature essay B. to help you consider your audience and purpose C. to locate books you have always wanted to read D. to take a break and stretch while at the library