Questions in mathematics

Questions in mathematics

📝 Answered - Solve the exponential equation for $x$. $256=\left(\frac{1}{4}\right)^{3 x+2}$ A. $x=4$ B. $x=-2$ C. $x=2$ D. $x=-4$

📝 Answered - What is the following product? [tex]$\sqrt[4]{7} \cdot \sqrt[4]{7} \cdot \sqrt[4]{7} \cdot \sqrt[4]{7}$[/tex]

📝 Answered - Use a calculator to solve this problem: [tex]$28+27 \times 36$[/tex] A. 792 B. 1000 C. 1980

📝 Answered - 1. What is the sum of the integers -30, -15, -10, -20, and -15? 2. Two integers a and b are such that a ÷ b = -2. What are the possible values of (a, b)?

📝 Answered - A sequence is defined recursively by the formula [tex]$f(n+1)=-2 f(n)$[/tex]. The first term of the sequence is -1.5. What is the next term in the sequence?

📝 Answered - Solve the following inequality for $x$. $-26+13 x+2>2-13 x$ A. $x<2$ B. $x \geq-1$ C. $x>1$ D. $x<-2$

📝 Answered - Factor the following expression: [tex]2 x^2-9 x+10[/tex] Enter the correct symbol, + or -. [tex](2 x[?] 5)(x-[?])[/tex]

📝 Answered - Marty has exactly 5 blue pens, 6 black pens, and 4 red pens in his backpack. If he pulls out one pen at random from his backpack, what is the probability that the pen is either red or black? (A) \(\frac{2}{3}\) (B) \(\frac{3}{5}\) (C) \(\frac{2}{5}\) (D) \(\frac{1}{3}\)

📝 Answered - What is the following sum? $2\left(\sqrt[3]{16 x^3 y}\right)+4\left(\sqrt[3]{54 x^6 y^5}\right)$

📝 Answered - Solve the expression for $x$: $(4-2)(x-2)=4x-8$ A. $x=0$ B. $x=6 / 5$ C. $x=2$ D. $x=-2