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Questions in mathematics

[Done] The sale price of a television set is P 7,200. The discount rate is 40%. Find its regular price. a) P 4,320 b) P 12,000 c) P 6,800 d) P 10,000 The difference between 8 times a number and 17 is 231. Find the number. a) 31 b) 37 c) 48 d) 1,984

[Done] Arrange the following in ascending order: a) 2568, 2947, 3263, 4762 b) 1654, 1564, 1723, 2469 c) 6342, 6294, 5029, 5490 d) 7241, 7652, 8291, 9320 Multiply: a) 142 × 13 b) 243 × 8 c) 32 × 7 d) 425 × 9

[Done] Graph the equation. $y=2 x^2-8 x+3$

[Done] Graph the equation $y=-x^2-4 x-3$ on the accompanying set of axes. You must plot 5 points including the roots and the vertex. Click to plot points. Click points to delete them.

[Done] Vladas believes that an equation with a squared term is never a function of x. Which equation can be used to show Vladas that his hypothesis is incorrect? A. [tex]$x+y^2=25$[/tex] B. [tex]$x^2-y=25$[/tex] C. [tex]$x^2+y^2=25$[/tex] D. [tex]$x^2-y^2=25[/tex]

[Done] What is the product? $\frac{4 n}{4 n-4} \cdot \frac{n-1}{n+1}$ A. $\frac{4 n}{n+1}$ B. $\frac{n}{n+1}$ C. $\frac{1}{n+1}$ D. $\frac{4}{n+1}$

[Done] The equation $\cos ^{-1}\left(\frac{3.4}{10}\right)=x$ can be used to determine the measure of angle BAC. What is the degree measure of angle BAC? Round to the nearest whole degree.

[Done] Date itive exponents. 2) $\frac{3}{3^3}$

[Done] $4^3-(2+8)=$ F. 118 G. 70 H. 54 J. 2 K. None of these

[Done] Simplify. [tex]$\sqrt{\frac{36}{81}}$[/tex]