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Anna35 [415]
3 years ago
6

In timed typing test,Lara typed 63 words per minute.Estimate the number of words she should be able to type in a half hour.Show

your work.
Mathematics
2 answers:
RoseWind [281]3 years ago
6 0
63 times 30 because in one hour their is 69 minutes and half of 60 is 30
lutik1710 [3]3 years ago
3 0

Answer: 1980

Step-by-step explanation:

Multiply 63 by 30 because half an hour is 30 min.

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Which expressions are equivalent to −tan⁡ θ?
zzz [600]

Answer:

−1/cotθ

1/cot(−θ)

tan(−θ)

Step-by-step explanation:

The tangent function is a the ratio for an angle defined as opposite / adjacent.  A negative applied to −tan⁡ θ will give the opposite value. This is also true for the function when taken on a negative angle. tan(−θ) = −tan⁡ θ. This identity is also true for sin, sec, and cot. Recall that cotangent is the reciprocal of tangent and is defined as the ratio adjacent / opposite. Taking the reciprocal of cotangent will be the same as tangent. Using this information the following are equivalent:

1/cotθ

−1/cotθ  ----> The reciprocal of Cot is Tan

1/cot(−θ) ----> The reciprocal of Cot is Tan and cot(−θ) = −cot⁡ θ.

−1/cot(−θ)

tan θ

tan(−θ)----> tan(−θ) = −tan⁡ θ

7 0
3 years ago
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butalik [34]

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Step-by-step explanation:

4 0
2 years ago
Evaluate: 2/3 x 1<br> *Write your answer in fraction form.*
alina1380 [7]

Answer:

its just 2/3 lol

Step-by-step explanation:

2/3 x 1 is 2/3

8 0
3 years ago
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Step-by-step explanation:

5 0
3 years ago
A person earns $43,200 one year and receives an 8% raise in salary. What is the new salary?
Ne4ueva [31]
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6 0
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