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vesna_86 [32]
3 years ago
11

PLEASE HELP I ONLY HAVE AN HOUR ​

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
4 0

Answer:

A. I can't quite see the question, but I'm pretty sure it's A

Step-by-step explanation:

Sin(A) = 1/3

Sin^2(A) + Cos^2(A) = 1

(1/3)^2 + cos^2(A) = 1

1/9 + cos^2(A) = 1

cos^2(A) = 1 - 1/9

cos^2(A) = 8/9

cos(A) = √(8/9)

√8 = √(2 * 2 * 2) = 2√2

√9 = 3

cos(A) = 2√2/3

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What is the value of -4° + (5-2)(-6)?
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Answer:

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Step-by-step explanation:

Due to order of operations rules, we must perform the subtraction inside parentheses first, getting:

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8 0
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3 0
1 year ago
Which of the following polygons has five lines of symmetry?
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6 0
3 years ago
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Vilka [71]

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8 0
3 years ago
The Russo-Japanese War was a conflict between Russia and Japan that started in the year 190419041904. Let xxx represent any year
wel
The first thing we must do for this case is to define a variable.
 We have then:
 x: number of years before the Russo-Japanese conflict began
 We write now the inequality that models the problem.
 We know that the conflict began in the year 1904, therefore, all the previous years are given by:
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 Answer:
 
an inequality in terms of x and 1904 that is true only for values of x that represent years before the start of the Russo-Japanese War is:
 
x <1904
4 0
3 years ago
Read 2 more answers
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