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SIZIF [17.4K]
3 years ago
14

1 4/5 + (2 3/20 + 3/5) use mental math and properties to solve write your answer in simplest form​

Mathematics
1 answer:
puteri [66]3 years ago
6 0

Answer: 61/12?

Step-by-step explanation:

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If θ is an angle in standard position that terminates in Quadrant IV such that cosθ = 3/5, then cosθ/2 = _____. -
Sveta_85 [38]

Answer:

cos \frac{\theta}{2}= 0.894.

Step-by-step explanation:

Given:

cos\ \theta= \frac35

We need to find cos \ \frac{\theta}{2}

Solution:

cos\ \theta= \frac35

First we will find the value of \theta.

Now taking cos^{-1} on both side we get;

\theta= cos^{-1} \ \frac{3}{5}\\\\\theta = 53.13

Now we will find the \frac{\theta}{2}.

\frac{\theta}{2} = \frac{53.13}{2} = 26.565

Now we will find cos \ \frac{\theta}{2} we get;

cos \frac{\theta}{2}=cos\ 26.565 = 0.894

Hence cos \frac{\theta}{2}= 0.894.

4 0
3 years ago
The amount y (in cups) of flour is proportional to the number x of eggs in a recipe. The recipe calls for 6 cups of flour for ev
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R=d/t if you are solving for d
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Answer:

If you were solving for d it would be

Step-by-step explanation:

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