Questions in mathematics

Questions in mathematics

📝 Answered - Use common or natural logarithms to solve the exponential equation. [tex]3 e^{5 x+2}=12[/tex] x= (Round to four decimal places as needed.)

📝 Answered - Which algebraic expression represents the phrase "seven more than half of a number"? A. [tex]$7-\frac{1}{2} x$[/tex] B. [tex]$-7+\frac{1}{2} x$[/tex] C. [tex]$\frac{1}{2} x+7$[/tex] D. [tex]$-\frac{1}{2} x-7$[/tex]

📝 Answered - Evaluate the definite integral. (Round answer to 2 decimal places.) [tex]\int_2^5 \frac{8 x^2+7}{\sqrt{x}} d x=79.95[/tex]

📝 Answered - Solve: [tex]s =4+\sqrt{ s +2}[/tex]

📝 Answered - Solve the following: a) 4348919 - 289035 + 1286459 b) 7845321 + 678946 - 998987

📝 Answered - Simplify. [tex]\(\frac{-4i}{1 + 3i} = -\frac{?}{?} - \frac{?}{?}i\)[/tex]

📝 Answered - \frac{5}{x}-\frac{3}{2 x}=\frac{7}{6}

📝 Answered - If $a(x)=2 x-4$ and $b(x)=x+2$, which of the following expressions produces a quadratic function? A. $(a b)(x)$ B. $\left(\frac{a}{b}\right)(x)$ C. $(a-b)(x)$ D. $(a+b)(x)$

📝 Answered - Solve for $a$. $P=a+b-1$

📝 Answered - Which function does the graph represent? A. f(x) = (x + 3)(x + 7) B. f(x) = (x – 3)(x – 7) C. f(x) = 3(x – 3)(x – 7) D. f(x) = 11(x + 3)(x + 7)