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Questions in Grade College

[Answered] Let [tex]$f(x)=4 x^2-2$[/tex]. Find [tex]$f(t+1)$[/tex].

[Answered] Discuss the locations and importance of DNA and RNA.

[Answered] A sector of a circle is a region bound by an arc and the two radii that share the arc's endpoints. Suppose you have a dartboard that has a diameter of 20 in and it is divided into 20 congruent sectors. Find the area of one sector. area of sector $= \frac{m \overline{A B}}{360^{\circ}} \bullet \pi r^2$ Part I: Find the central angle. (Hint: A circle has $360^{\circ}$.) Part II: Use your answer from Part I to find the fraction of the circle that one sector will take up. Part III: Use the fractional part from Part II with the area formula to find the area of one sector of the circle to the nearest tenth.

[Answered] Appropriately labeling items in the art center will serve the purpose of: A. helping the teacher locate materials efficiently. B. allowing for quicker cleanup after art time. C. allowing for quicker setup before art time. D. surrounding the children with functional print.

[Answered] Find the mass of [tex]$AlCl _3$[/tex] that is produced when 25.0 grams of [tex]$Al _2 O _3$[/tex] react with excess HCl according to the following equation: [tex]$Al_2 O_3(s)+6 HCl(a q) \rightarrow 2 AlCl_3(a q)+3 H_2 O(l)$[/tex] A. 65.4 g B. 72.9 g C. 155 g D. 16.3 g E. 32.6 g

[Answered] Which of the following indicates the subtraction property of equality when solving the equation [tex]$4(x+9)+5=3 x-8$[/tex]? A. [tex]$4 x+36+5=3 x-8$[/tex] B. [tex]$x=-49$[/tex] C. [tex]$4(x+9)-5+8=3 x$[/tex] D. [tex]$4(x+9)=3 x-8-5$[/tex]

[Answered] Pushing on a wrench helps to avoid sudden loosening that may cause hand injury. A. True B. False

[Answered] Age distribution of employees: | Age (Years) | Employees | | ----------- | --------- | | 20-30 | 5 | | 30-40 | 8 | | 40-50 | 12 | | 50-60 | 10 | | 60-70 | 5 | Calculate the standard deviation using the assumed mean method.

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

[Answered] Which equation below is equivalent to $\sin C=\frac{h}{a} ?$ A. $h=\frac{\sin C}{a}$ B. $a=h \sin C$ C. $a=\frac{\sin C}{h}$ D. $h=a \sin C$