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Over [174]
3 years ago
8

Help please need to be done ASAP

Mathematics
1 answer:
storchak [24]3 years ago
5 0
Answer: 16, 3, 9, 80
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Then answer would be 300÷127=Z
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Help me solve for x ?
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Step-by-step explanation:

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2 years ago
If tan0=-3/4 and 0 is in quadrant IV, cos20= (33/25, -17/25, 32/25, 7/25, 24/25?) and tan20= (24/7, -24/7, 7/25, -7/25, 13/7, -1
Oksana_A [137]

Answer:

  • cos(2θ) = 7/25
  • tan(2θ) = -24/7

Step-by-step explanation:

Sometimes, it is easiest to let a calculator do the work. (See below)

__

The magnitude of the tangent is less than 1, so the reference angle will be less than 45°. Then double the angle will be less than 90°, so will remain in the 4th quadrant, where the cosine is positive and the tangent is negative.

You can also use the identities ...

  cos(2θ) = (1 -tan(θ)²)/(1 +tan(θ)²)

  cos(2θ) = (1 -(-3/4)²)/(1 +(-3/4)²) = ((16-9)/16)/((16+9)/16)

  cos(2θ) = 7/25

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  tan(2θ) = 2tan(θ)/(1 -tan(θ)²) = 2(-3/4)/((16-9/16) = (-6/4)(16/7)

  tan(2θ) = -24/7

3 0
3 years ago
I have a brainly plus subscription and it's not letting me see the answers....whats going on
mr Goodwill [35]

Answer:

its a glitch

Step-by-step explanation:

4 0
3 years ago
Help me with this question plz. Write the slope intercept form of the equation of each line.
damaskus [11]

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Step-by-step explanation:

You first figure out the slope by counting the rise and run which is -4/3 in this case and then you look at where it intercepts the y-axis and add it to the end of the equation.

8 0
3 years ago
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