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8_murik_8 [283]
3 years ago
5

Review the proof.

Mathematics
2 answers:
Digiron [165]3 years ago
8 0

Answer:

step 5

Step-by-step explanation:

edge

andrezito [222]3 years ago
7 0

Answer:

Step-by-step explanation:

A 2-column table with 8 rows. Column 1 is labeled Step with entries 1, 2, 3, 4, 5, 6, 7, 8. Column 2 is labeled Statement with entries cosine (2 x) = 1 minus 2 sine squared (x), let 2 x = theta, then x = StartFraction theta Over 2 EndFraction, cosine (theta) = 1 minus 2 sine squared (StartFraction theta Over 2 EndFraction), negative 1 + cosine (theta) = negative 2 sine squared (StartFraction theta Over 2 EndFraction), 1 + cosine (theta) = 2 sine squared (StartFraction theta Over 2 EndFraction), StartFraction 1 minus cosine (theta) Over 2 EndFraction = sine squared (StartFraction theta Over 2 EndFraction), sine (StartFraction theta Over 2 EndFraction) = plus-or-minus StartRoot StartFraction 1 minus cosine (theta) Over 2 EndFraction EndRoot.

Which step contains an error?

Answer:

 

Step-by-step explanation:

 

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<img src="https://tex.z-dn.net/?f=Simplify%5C%3Beach%5C%3Bof%5C%3Bthe%5C%3Bfollowing%5C%3Bequations%5C%3Bfor%5C%3B50%5C%3Bpoints
jekas [21]

Answer:

  1. y= -12
  2. x = 7
  3. q = -1
  4. x = 24

Step-by-step explanation:

1. ..............................................

  • 6(y + 7) = 2(y - 3)
  • 6y + 42 = 2y - 6
  • 6y - 2y = -6 - 42
  • 4y = -48
  • y = -12

2...............................................

  • 3x + 2(x - 5) = 25
  • 3x + 2x - 10 = 25
  • 5x = 25 + 10
  • 5x = 35
  • x = 7

3 . ..............................................

  • 10q + 3q + 5 = 2(q - 3)
  • 13q + 5 = 2q - 6
  • 13q - 2q = -6 - 5
  • 11q = -11
  • q = -1

4. ..............................................

  • 1/3(x + 6) = 2/3(x - 9)
  • 3*1/3(x+6) = 3*2/3(x - 9)
  • x + 6 = 2(x - 9)
  • x + 6 = 2x - 18
  • 2x - x = 6 + 18
  • x = 24
3 0
3 years ago
Read 2 more answers
12x-18=90 whats the answer ?
zhenek [66]

Answer:

=

9

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which multiplication has a negative answer?
ki77a [65]
C has a negative answer. hope this helps
6 0
3 years ago
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Is (5,-2) a solution of the graphed inequality?<br><br> Yes or No
solmaris [256]
Yes
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4 0
3 years ago
Read 2 more answers
Please help meeee (1/2) to the 4th power
Karolina [17]

Answer:

\frac{1}{16}

Step-by-step explanation:

\frac{1}{2} *\frac{1}{2} *\frac{1}{2} *\frac{1}{2} =\frac{1}{16}

\frac{1}{2}*\frac{1}{2} =\frac{1}{4}

\frac{1}{4} *\frac{1}{2} =\frac{1}{8}

\frac{1}{8}*\frac{1}{2}=\frac{1}{16}

4 0
3 years ago
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