Factor the perfect square trinomial completely.x2 + 14xy + 49y2
A. (x - 7y)2
B. (x + 7y)(x - 7y)
C. prime
D. (x + 7y)2
Answer: D
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Show that the set has cardinal number ?0 by establishing a one-to-one correspondence between the set of counting numbers and the given set. Be sure to show the pairing of the general terms in the sets.{5, 10, 15, 20, ...}
A.
{ | 1, | 2, | 3, | 4, | ..., | n, | ...} |
? | ? | ? | ? | ? |
{ | 5, | 10, | 15, | 20, | ..., | n, | ...} |
B.
{ | 1, | 2, | 3, | 4, | ..., | n, | ...} |
? | ? | ? | ? | ? |
{ | 5, | 10, | 15, | 20, | ..., | 5n, | ...} |
C.
{ | 0, | 1, | 2, | 3, | ..., | n, | ...} |
? | ? | ? | ? | ? |
{ | 5, | 10, | 15, | 20, | ..., | 5n, | ...} |
D.
{ | 1, | 2, | 3, | 4, | ..., | n, | ...} |
? | ? | ? | ? | ? |
{ | 5, | 10, | 15, | 20, | ..., | 6n, | ...} |
Find the exact values of the remaining trigonometric functions of ? from the given information.cos ? = , sin ? < 0
A. sin ? = -
cos ? =
tan ? = -
csc ? = -
sec ? =
cot ? = -
B. sin ? = -
cos ? =
tan ? = -
csc ? = -
sec ? =
cot ? = -
C. sin ? = -
cos ? =
tan ? = -
csc ? = -
sec ? =
cot ? = -
D. sin ? =
cos ? =
tan ? = -
csc ? =
sec ? = -
cot ? = -
Use a calculator to find a graphical solution to the equation. Express results to the nearest thousandth.4x2 + 8x = - 1
A. -3.134, -4.866 B. -0.134, -1.866 C. -0.033, -0.467 D. 0.118, -2.118
Convert the angle to decimal degrees and round to the nearest hundredth of a degree.251°44'20"
A. 251.70° B. 251.75° C. 251.74° D. 251.80°