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Questions in mathematics

[Done] If [tex]x^5y^4z^2 < 0[/tex], which of the following must be true? I. [tex]xy < 0[/tex] II. [tex]yz < 0[/tex] III. [tex]xz < 0[/tex]

[Done] What is the value of [tex]6P6[/tex]? A. 1 B. 36 C. 720 D. 46,656

[Done] How many combinations of 3 students can a teacher choose from 32 students? A. 96 B. 4,960 C. 29,760 D. 32,768

[Done] What is the value of [tex]9P5[/tex]? A. 45 B. 126 C. 15,120 D. 59,049 A cooking club has 12 members. How many ways can they select a president and vice president from among the members? A. 1,320 B. 220 C. 132 D. 66

[Done] Identify the like terms: 9x, 10y, –9y, 10 A. 9x and 10 B. 10y and 10 C. 10y and –9y D. 9x and -9y The term 25ab and which other term are like terms? A. 25 B. 24a C. 5ba D. 10b Combine like terms: 15w – 28w A. –43w B. –13w C. –13 D. None of the above Combine like terms: 9 + 18s – 7s A. 20s B. 9 + 11s C. 9 – 11s D. 20 Combine like terms: \( \frac{5}{6}X \) take away \( -\frac{2}{3}X \) A. \( \frac{1}{6}X \) B. \( \frac{1}{3}X \) C. \( \frac{1}{2}X \) D. X

[Done] The weekly sales of a magazine increased from 500,000 to 600,000. By what percentage did the magazine sales increase?

[Done] When 70,000 is written as [tex]7.0 \times 10^{n}[/tex], what is the value of [tex]n[/tex]?

[Done] A certain animal in the zoo has consumed 39 pounds of food in six days. If it continues to eat at the same rate, in how many more days will its total consumption be 91 pounds?

[Done] For [tex]f(x) = 3x + 4[/tex], find [tex]f(2)[/tex] and find [tex]x[/tex] such that [tex]f(x) = 17[/tex].

[Done] If \(3x - 10 = 17\), what is the value of \(6x + 20\)?