10. Round off 248,682 to the nearest hundred. A. 248,700 B. 249,000 C. 248,680 D. 250,000

Solve the equation using the quadratic formula. \( x^{2}-4 x+8=0 \) The solution set is (Simplify your answer. Type an exact answer, using radicals and \( i \) as needed. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.)

2. \( x-15=35 \)

b. \( -10+[1 \cdot 2=0 \)

The graphs of \( y=x^{2}(x+5) \) and \( y=\frac{3}{x}(x>0) \) intersect at one point, \( x=r \), as shown. Use Newton's method to estimate the value of \( r \). Compute successive. approximations to find the solution to four decimal places. \( r=\square \) (Type an integer or decimal rounded to four decimal places as needed.)

14 Solve \( x: 6^{30}+6^{30}+6^{30}+6^{30}+6^{30}+6^{30}=6^{x} \quad \) Display your reasoning.