Decide whether the statement is true or false. If it is false, tell why.The equation -x2 = -49 has no real solutions.

A. False; the equation has one real number solution, 7.
B. True
C. False; the equation is equivalent to x2 = 49 and has two real solutions, 7 and -7.


Answer: C

Mathematics

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Use the appropriate identity to find the indicated function value. Rationalize the denominator, if applicable. If the given value is a decimal, round your answer to three decimal places.tan ?, given that cot ? = 

A.
B.
C.
D.

Mathematics

Simplify by using the order of operations. Round your answer to the nearest hundredth, if necessary.2.12 + 2.4 - 6.6

A. 4.41 B. 0.21 C. 0 D. -2.1

Mathematics

Consider the series ? . ? Find the values of x for which the series converges.   ? Find the sum of the series where it is convergent

What will be an ideal response?

Mathematics

Find the vertex, axis of symmetry, and y-intercept of the parabola that has the given focus and directrix.Focus (-5, 6), directrix y = 4

A. (-55), x = -5
B. (-510), x = 10
C. (-55), y = -5, (0, 5)
D. (5-5), y = 5, (0, -5)

Mathematics