Questions in mathematics

Questions in mathematics

📝 Answered - The table shows the estimated sales for two different prices of bags of chips. Calculate the profit per bag for the bags sold at $3 each. | Sales Price | Estimated Sales | Fixed Cost | Fixed Cost per Unit | Variable Cost | Total Cost | | ----------- | --------------- | ---------- | ------------------- | ------------- | ---------- | | $2.00 | 1,200,000 bags | $300,000 | $0.25 | $0.40 | $0.65 | | $3.00 | 600,000 bags | $300,000 | $0.50 | $0.40 | $0.90 |

📝 Answered - Convert 25 cm to m. 1 m = 100 cm

📝 Answered - Which expression is equivalent to $(4+6 i)^2 ?$ A. $-20+48 i$ B. $8+12 i$ C. $16-36 i$ D. $20+48 i$

📝 Answered - Which of the following could be the graph of 2(y+1)=-6(x-2)? (A) (B) (C) (E)

📝 Answered - Write each expression in terms of sine and cosine, and then simplify so that no quotients appear in the final expression and all functions are of [tex]$\theta$[/tex] only. [tex]$\sin ^2(-\theta)+\tan ^2(-\theta)+\cos ^2(-\theta)$[/tex]

📝 Answered - If the area of the walls of a room is [tex]$72 m^2$[/tex], its length is 8 m, and its breadth is 4 m, what is its height?

📝 Answered - Let Z~N(0, 1). Find P(Z < -0.8).

📝 Answered - $f(x)=3 x^2+5 x+6$ (i) $f^{\prime}(0)$ (ii) $f^{\prime}(-2)$ (iii) $f^{\prime \prime}(1)$

📝 Answered - Estimate the result, and then multiply in writing. [table] | 40-2=80 | Estimation | Calculation | |---|---|---| | 43 * 2 | 26 * 3 | 74 * 6 | 87 * 4 | | Estimation: 700 * 4 = | Estimation: | Estimation: | Estimation: | | 742 * 4 | 1896 | 1937 | 4836 | | . | | | | [/table] 6)

📝 Answered - Given that [tex]$\frac{\sqrt{3}+\sqrt{5}}{\sqrt{5}}=x+y \sqrt{15}$[/tex], find the value of $(x+y)$.