Questions in mathematics

Questions in mathematics

📝 Answered - Select the correct answer. Frances has 4 square baking dishes. Each pan is 7 inches$\times$7 inches$\times$2 inches. Which expression will give her the total volume of all the pans? A. $7 \times 2 \times 2$ B. $7 \times 204$ C. $(7 \times 2 \times 2) \times 4$ D. $(7^2 \times 2) \times 4$

📝 Answered - Suppose f(x) = -x² - 4x + 6. Compute the following: A.) f(-4) + f(3) = B.) f(-4) - f(3) =

📝 Answered - Instead of marking up an article by 20%, by mistake, a shopkeeper marked it down by 20%. Furthermore, a discount of 6.25% was offered on the marked price of all articles in the shop. In this transaction, the shopkeeper incurred a loss of Rs. 3,750. What was the actual selling price (in Rs.) that the article was supposed to be sold at?

📝 Answered - Write the square root of: a) 744 b) 769 c) 225

📝 Answered - Pooja spends 10% of her monthly income on rent, 20% of the remaining on food, and 50% of the remaining on traveling. If the difference between the amount she spends on traveling and that on rent is Rs. 52000, then find the monthly income (in Rs.) of Pooja. A. Rs. 70000 B. Rs. 150000 C. Rs. 2000 D. Rs. 5000 E. Rs. 200000

📝 Answered - What is the equation of a line that is parallel to the line $2x+5y=10$ and passes through the point $(-5,1)$? Check all that apply. A. $y=-\frac{2}{5}x-1$ B. $2x+5y=-5$ C. $y=-\frac{2}{5}x-3$ D. $2x+5y=-15$ E. $y-1=-\frac{2}{5}(x+5)$

📝 Answered - The volume of air inside a rubber ball with radius [tex]$r$[/tex] can be found using the function [tex]$V(n)=\frac{9}{3} \pi r$[/tex]. What does [tex]$V\left(\frac{9}{7}\right)$[/tex] represent? A. the radius of the rubber ball when the volume equals [tex]$\frac{5}{7}$[/tex] cubic feet B. the volume of the rubber ball when the radius equals [tex]$\frac{5}{7}$[/tex] feet C. that the volume of the rubber ball is 5 cubic feet when the radius is 7 feet D. that the volume of the rubber ball is 7 cubic feet when the radius is 5 feet

📝 Answered - Which of the following are geometric series? [tex]$\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}+\frac{1}{32}$[/tex] [tex]$2+5+8+11+14+17$[/tex] [tex]$1+1+2+3+5+8+13+21$[/tex] [tex]$-256+64-16+4-1$[/tex]

📝 Answered - In the equation $3 x^2-10 x=8$, which of the following values for $x$ will make the equation true? A. -4 B. -3 C. 3 D. 4

📝 Answered - Determine the solution for the following equation: $(8 x-8)^{\frac{3}{2}}=64$ A. $x=3$ B. $x=5$ C. $x=13$ D. $x=65$