Questions in mathematics

Questions in mathematics

📝 Answered - 8. The grid below has missing information, identify the correct information. | Decimal | Fraction | Fraction of a £ | Fraction of a Kg | |---|---|---|---| | 0.25 | 1/4 | 25p | 250g | | 0.50 | 1/2 | 50p | 500g | | 0.75 | 3/4 | 75p | 750g | | | 1/10 | 10p | | Choose the option that best answers the question. A. 1 B. 0.10 C. 1.0 D. 0.01 9. If a jacket's original retail price is £75, but it has been reduced in a sale by 20%, how much is the jacket now? Choose the option that best answers the question. A. £15 B. £70 C. £60 D. £65

📝 Answered - Considering your answer in #2, what do you call an expression which consists of numbers, variables and operations?

📝 Answered - Which of the following is a radical equation? [tex]x+\sqrt{5}=12[/tex] [tex]x^2=16[/tex] [tex]3+x \sqrt{7}=13[/tex] [tex]7 \sqrt{x}=14[/tex]

📝 Answered - How long would it take a construction loan for $548,048 to earn interest of $50,000 at 9% exact interest?

📝 Answered - Which of the following is a logarithmic function? A. [tex]$y=0.25 x$[/tex] B. [tex]$y=x^{0.25}$[/tex] C. [tex]$y=\log _{0.25} x$[/tex] D. [tex]$y=(0.25)^x$[/tex]

📝 Answered - The distance it takes a truck to stop can be modeled by the function [tex]d(v)=\frac{2.15 v^2}{64.4 f}[/tex] [tex]d=[/tex] stopping distance in feet [tex]v=[/tex] initial velocity in miles per hour [tex]f=[/tex] a constant related to friction When the truck's initial velocity on dry pavement is 40 mph, its stopping distance is 138 ft. Determine the value of [tex]f[/tex], rounded to the nearest hundredth. [tex]f \approx[/tex] $\square$

📝 Answered - Line $AB$ passes through points $A(-6,6)$ and $B(12,3)$. If the equation of the line is written in slope-intercept form, $y=mx+b$, then $m=-\frac{1}{6}$. What is the value of $b$?

📝 Answered - \frac{5 a b}{c d} \div 2 \frac{1}{7}

📝 Answered - The table shows the estimated number of lines of code written by computer programmers per hour when [tex]$x$[/tex] people are working. Productivity | People working | Lines of code written hourly | | :------------- | :--------------------------- | | 2 | 50 | | 4 | 110 | | 6 | 160 | | 8 | 210 | | 10 | 270 | | 12 | 320 | Which model best represents the data? A. [tex]$y=47(1.191)^x$[/tex] B. [tex]$y=34(1.204)^x$[/tex] C. [tex]$y=26.9 x-1.3$[/tex] D. [tex]$y=27 x-4$[/tex]

📝 Answered - Select the correct answer. $\begin{array}{c} (-1,1) \\ (0,-1) \\ (5,-11) \\ (10,-21) \end{array}$ What is the domain of the set of ordered pairs above? A. $\{-1,0,5,10\}$ B. $\{-1,10\}$ C. $\{1,-1,-11,-21\}$ D. $\{-1,1\}$