Questions in mathematics

Questions in mathematics

📝 Answered - Karen found that the solution to [tex]x-7+5 x=36[/tex] is [tex]x=6[/tex]. Which of these could be the way she found the solution? A. add -7 and [tex]5 x[/tex], subtract [tex]x[/tex] from both sides of the equation B. add [tex]x+5 x[/tex], subtract 7 from both sides of the equation C. add [tex]x-7+5 x[/tex], add 36 to both sides of the equation D. add [tex]x+5 x[/tex], add 7 to both sides of the equation

📝 Answered - Harland just got his second major credit card, so his credit score rose from 671 to 711. According to the following table for a $150,000 mortgage, how much less per year would Harland have to pay on a $150,000 mortgage with the new credit score? | FICO Score | Interest Rate | Monthly Payment | | :---------- | :------------- | :-------------- | | 720-850 | 5.59% | $860 | | 700-719 | 5.71% | $872 | | 675-699 | 6.25% | $924 | | 620-674 | 7.40% | $1039 | | 560-619 | 8.53% | $1157 | | 500-559 | 9.29% | $1238 | A. $872 B. $167 C. $1039 D. $2004

📝 Answered - A rope that is $[tex]253 / 4[/tex]$ feet long is to be cut into pieces that are $[tex]1 / 2[/tex]$ feet each. What is the maximum number of pieces the rope can be cut into?

📝 Answered - Evaluate: (a) 17³ (b) (-21/2)² (c) (-3)⁵ (d) 2⁸ (e) (-3)⁵ × 5² (f) (-5) × 10⁴ (g) (-6)³ × (-1)²¹ (h) 2⁷ / 8 (i) 3125 / 243 (j) (2/3)² × (-3/5)³ × (-1)¹⁵ × (-1)²⁸ × (1)⁵¹

📝 Answered - Round to the nearest 100. f) 489 + 213 -> g) 164 + 145 -> h) 572 + 287 -> i) 311 + 196 -> j) 280 + 308 ->

📝 Answered - What is the value of 4√2 + 2√32?

📝 Answered - The value of a savings account, in dollars, $V(r)$, at the end of 2 years is represented by the interest, expressed as a decimal. What is the value of $V(r)$ for $r=0.03$? $501.06 $530.45 $500.45 $509.00

📝 Answered - The midpoint of $\overline{K L}$ is $M(2,7)$. One endpoint is $K(-5,11)$. Which equations can be used to find the coordinates of endpoint $L \left(x_2, y_2\right)$ ? $\frac{-5+x_2}{2}=2, \frac{11+y_2}{2}=7$ $\frac{-5+x_2}{2}=7, \frac{11+y_2}{2}=2$ $\frac{2+x_2}{2}=-5, \frac{7+y_2}{2}=11$ $\frac{2+x_2}{2}=11, \frac{7+y_2}{2}=-5

📝 Answered - Select the correct answer. Find the value of [tex]f(-3)[/tex] for the function below. [tex]f(x)=2 x+10[/tex] A. -4 B. -6.5 C. 4 D. 16

📝 Answered - What is the domain of the function $f(x)=\frac{x+1}{x^2-6 x+8}$? A. all real numbers B. all real numbers except -1 C. all real numbers except -4 and -2 D. all real numbers except 2 and 4