Solve the problem.To find the height of this tree, Sarah marked the tree at eye level, 1.8 meters above the ground. She measured 25 m from the base of the tree and then held a 5-cm ruler vertically in front of her eye until the ruler just obscured the tree above the mark. Using a string tied through a hole in one end of the ruler, Sarah found that the distance from her eye to the ruler was 4.7 centimeters. What was the height of the tree? Round to the nearest unit.
A. 30 m
B. 28 m
C. 24 m
D. 26 m
Answer: B
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True or false?When using a truth table, the statement q ? p is equivalent to ~q ? p.
A. True B. False
Provide an appropriate response.Solve the following system of equations using the addition method: 2x + 3y = -5 4x - 9y = 35
Fill in the blank(s) with the appropriate word(s).
Use Pascal's triangle to expand the binomial.(x3 - 2y2)5
A. x15 - 2x12y2 + 4x9y4 - 8x6y6 + 16x3y8 - 32y10 B. x15 - 32y10 C. x15 - 10x12y2 + 40x9y4 - 80x6y6 + 80x3y8 - 32y10 D. x15 - 10x7y2 + 40x6y4 - 80x5y5 + 80x3y6 - 32y7
Provide an appropriate response.(27 × 14) × 11 = 415827(14 × 11) = 4158This is an example of the 
.
A. commutative property of addition B. associative property of multiplication C. commutative property of multiplication D. associative property of addition