Find the exact length of the missing side of a right triangle with sides a, b, and c, where c is the hypotenuse.a = 15, b = 20
A. 13
B. 24
C. 18
D. 25
Answer: D
Mathematics
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Write the number in scientific notation.In a certain city, the bus system carried a total of 18,200,000,000 passengers.
A. 1.82 × 1011 B. 1.82 × 1010 C. 1.82 × 109 D. 18.2 × 1010
Mathematics
Combine like terms.-8b + 3b
A. -11b B. 5b C. -5b2 D. -5b
Mathematics
Solve the equation.
= 
+ 
A. 
B. no solution
C. 3
D. -3
Mathematics
Solve the problem.Find the fourth-degree polynomial satisfying the following conditions.P(-2) = -21, P(-1) = -13, P(0) = -17, P(1) = 21, P(2) = 275
A. P(x) = -5x4 + 19x3 - 16x2 - 2x + 17 B. P(x) = -67x4 + 229x3 + 275x2 + 245x - 17 C. P(x) = 5x4 + 19x3 + 16x2 - 2x - 17 D. P(x) = -379,720x4 - 54,936x3 - 162,144x2 - 398,200x - 17
Mathematics