Questions in Grade College

Questions in Grade College

[Free] In 1979, the price of electricity was $0.05 per kilowatt-hour. The price of electricity has increased at a rate of approximately 2.05% annually. If t is the number of years after 1979, create the equation that can be used to determine how many years it will take for the price per kilowatt-hour to reach $0.10. Fill in the values of A, b, and c for this situation. Do not include dollar signs in the response. [tex]c=A(b)^t[/tex]

[Free] Mr. Chaudhary has a rectangular pond for fish farming. The pond covers 8000 sq. m. of his land and its perimeter is 360 m. (i) Find the length and breadth of the pond. (ii) By what percent should the shorter edge of the pond be increased to make it a square?

[Free] The table represents an exponential function. | x | y | |---|---| | 1 | 2 | | 2 | \frac{2}{5} | | 3 | \frac{2}{25} | | 4 | \frac{2}{125} | What is the multiplicative rate of change of the function? A. \frac{1}{5} B. \frac{2}{5} C. 2 D. 5

[Free] What is the product of the monomials given? -18(ab)^{13} -18a^7b^6 -18a^{10}b^6 -18a^7b^9

[Free] Select the correct answer from each drop-down menu. Let [tex]$b(t)$[/tex] be the number of unread books remaining on Alex's bookshelf after reading consistently for [tex]$t$[/tex] months. [tex]$b(t)=75-5 t$[/tex] So, [tex]$b(9)=[/tex] . This means that , the

[Free] Solve the following inequality for $x$. $-8(x-8)<72$ Simplify your answer completely. Graph the solution

[Free] Use linear approximation to approximate [tex]$\sqrt{81.3}$[/tex] as follows. Let [tex]$f(x)=\sqrt{x}$[/tex]. The equation of the tangent line to [tex]$f(x)$[/tex] at [tex]$x=81$[/tex] can be written in the form [tex]$y=m x+b$[/tex]. Compute [tex]$m$[/tex] and [tex]$b$[/tex]. [tex]$\begin{array}{l} m= \\ b= \end{array}$[/tex] Using this find the approximation for [tex]$\sqrt{81.3}$[/tex]. Answer:

[Free] Convert each of the following percents to a decimal. a. $4 \frac{1}{2} \%$ b. $\frac{2}{7} \%$ c. $125 \%$ d. $\frac{1}{4} \%$

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

[Free] Solve the equation: [tex]$7 x=42$[/tex]. A. [tex]$x=-6$[/tex] B. [tex]$x=7$[/tex] C. [tex]$x=6$[/tex] D. [tex]$x=-7$[/tex]