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Mashutka [201]
3 years ago
14

I need help on this !!!!!

Mathematics
1 answer:
ikadub [295]3 years ago
4 0

Answer: 5.4

Step-by-step explanation:

Use cosine to find the adjacent side.

cosine = adjacent/hypotenuse

Substitute these values in the cosine equation:

cos(39) = x/7

7*cos(39) = x

Use a calculator to find the value of x:

x = 5.4

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the trigonometric functions are not one-to-one. but mathematicians wanted to define inverse functions. before that could be done
oee [108]

The restricted domains for the inverse trigonometric functions are the quadrants, that can be each of the following intervals:

  • 0 < x < 0.5π.
  • 0.5π < x < π.
  • π < x < 1.5π.
  • 1.5π < x < 2.

<h3>What are equivalent angles?</h3>

Each angle on the second, third and fourth quadrants will have an equivalent on the first quadrant. The relevance to these equivalent angles is that they may have equal values for the trigonometric functions, meaning that they are not one-to-one.

If we restrict the domain of the trigonometric functions in any of the four quadrants, we guarantee that they are one-to-one, hence the restricted domains are given as follows:

  • 0 < x < 0.5π.
  • 0.5π < x < π.
  • π < x < 1.5π.
  • 1.5π < x < 2.

More can be learned about trigonometric functions at brainly.com/question/16818112

#SPJ1

3 0
2 years ago
How many one-digit integers are in the interval between -5 and 3.02
Keith_Richards [23]
An integer is a whole number...can be positive or negative...and includes 0.
{-4,-3,-2,-1,0,1,2,3} = 8 total numbers....notice that I didn't include -5...that is because it says " between " .
7 0
3 years ago
Solve for b.
storchak [24]

Answer:

1. b=(d-c)/a

Step-by-step explanation:

make me a brainlist

8 0
2 years ago
You are planning a trip to the United States. The exchange rate is $1 = 78p Approximately how many dollars will you get if you c
neonofarm [45]
1 euro = 1.13 dollars
160 euro= 180.30
7 0
3 years ago
Solve for ddd. 6d-\dfrac{11}2=2d-\dfrac{13}26d− 2 11 ​ =2d− 2 13 ​ 6, d, minus, start fraction, 11, divided by, 2, end fraction,
ANEK [815]

Answer:

d = -\dfrac{1}{4}

Step-by-step explanation:

Given

6d-\dfrac{11}2=2d-\dfrac{13}{2}

Required

Solve for d

6d-\dfrac{11}2=2d-\dfrac{13}{2}

Collect Like Terms

-2d + 6d=-\dfrac{13}{2}+\dfrac{11}{2}

4d=-\dfrac{13}{2}+\dfrac{11}{2}

Take LCM

4d=\dfrac{-13+11}{2}

4d=\dfrac{-2}{2}

4d = -1

Make d the subject

d = -\dfrac{1}{4}

5 0
3 years ago
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