Find the limit.

A. -7
B. ?
C. -9
D. 0


Answer: C

Mathematics

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Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 75°

A. - 
B. - 
C.
D.

Mathematics

Provide an appropriate response.The price of an item is reduced by 20% in a sale. Two weeks later the price is increased to 20% more than the sale price. Has the item been restored to its original price? If not, is its price now higher or lower than the original price? Explain.

What will be an ideal response?

Mathematics

Determine which of the following methods is the best choice for solving the given equation: factoring, using the principle of square roots or using the quadratic formula. Then, solve the equation.(x - 2)2 = 25

A. Square root principle; 7-3
B. Quadratic formula; 
C. Square root principle or factoring; 27
D. Factoring; ±5  

Mathematics

Approximate ; n = 4, by (a) the trapezoidal rule, (b) the midpoint rule, and (c) then find the exact value of the integral.Enter just a, b, c where a and b are real numbers to two decimal places (rounded off), and c is an integer, all separated by commas and answering (a), (b), (c) in order but unlabeled.

Fill in the blank(s) with the appropriate word(s).

Mathematics