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gayaneshka [121]
3 years ago
11

Evaluate the expression without using a calculator Tan(arccos3/4)

Mathematics
1 answer:
julia-pushkina [17]3 years ago
6 0

9514 1404 393

Answer:

  (√7)/3

Step-by-step explanation:

The relationship between tangent and cosine is ...

  tan(α) = √(1/cos(α)² -1)

The cosine of the angle is given as 3/4, so the tangent is ...

  tan(arccos(3/4)) = √(1/(3/4)² -1) = √(16/9 -1) = √(7/9)

  tan(arccos(3/4)) = (√7)/3

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18x + 9y use the distributive property to write an equivalent expression
kirza4 [7]
Hey there!
It looks like you have another factoring question!
Using our definition of the distributive property:
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What is the equivalent of 243 to the power of (2/5)
nasty-shy [4]

<span>(243)^(2/5) = ?
---
The 5 in the denominator means "take the 5th root".
The 2 in the numerator means "square".

---


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6 0
2 years ago
Cressida decided to save a part of her income in a savings account that compounds interest every four months. Her account balanc
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kondor19780726 [428]

Answer:

Results:

0.1432

0.0045

0.0905

0.0483

Step-by-step explanation:

Step a:

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Step b:

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Step d:

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7 0
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