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Marat540 [252]
2 years ago
10

Use the triangle below to find the following trig ratios. Express your answer as a fraction.

Mathematics
1 answer:
Luda [366]2 years ago
5 0

Answer:

Step-by-step explanation:

First we need the length of the hypotenuse.

20^2 + 21^2 = c^2

400 + 441 = c^2

841 = c^2

29 = c

If you are using angle B as your theta (angle from which the relations are formed:

a) sin = O/H = 20/29

b) cos = A/H = 21/29

c) tan = O/A = 20/21

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Suppose that a number written as a decimal has an infinite number of non-repeating digits after the decimal point. What is this
emmasim [6.3K]

Answer:

Irrational

Step-by-step explanation:

The number is called an irrational number.

These numbers have some distinct properties. The number of numbers after the decimal point is infinite. What this means is that it does not terminate. It keeps on repeating.

Also, these numbers cannot be represented as a ratio of two integers i.e two whole numbers. This is because they keep on going without termination.

Lastly is that these numbers do not repeat after decimal. What I mean by this is that they do not keep repeating a particular number after the decimal point. For example in cases like 2.33333; these are infinite too, but they can be represented by the ratio of two whole numbers and in such cases, they are not irrational in their own respect

8 0
3 years ago
a long board 4.7 thick is cut into three pieces of equal length these three pieces are then stacked the stack is cut in three eq
nalin [4]

The number of pieces per stack after 3 cuts represented by a power expression can be written as 3^{3}

  • The number of equal pieces per cut = 3

  • The number of cuts made = 3

<u>Using a power </u><u>expression</u><u> </u><u>:</u>

  • The number of of equal pieces per cut is raised to a power which represents the number of cuts made

  • Thus we have number\: of \:equal\: pieces^{number\: of \:cuts}

  • After 1 cut ; 3^{1} = 3
  • After 2 cuts ; 3^{2} = 3\times3 = 9
  • After 3 cuts ; 3^{3} = 3\times3\times3 = 27

Therefore, the Number of pieces present in stack after 3 cuts is 3^{3}

Learn more :brainly.com/question/18796573

5 0
2 years ago
Find the nth term of this sequence<br><br> -4 -3 -2 -1 0 ...
AnnyKZ [126]
The answer to your question is:

+4

-4, -3, -2, -1, 0, 1, 2, 3, 4
3 0
3 years ago
Please answer step by step:<br><br><br><br> -4=2x+16<br><br> What does x equal?<br><br> x=____?
Fed [463]

Answer:

Step-by-step explanation:

-4=2x+16

-16. -16

-20=2x

20/2=2x/2

10=x

5 0
3 years ago
Write an equivalent expressions 48 + 18x
jeka94
If you factor it, you can get an equation that is equivalent. So take out a 6. that leaves you with 6(8+3x)
8 0
3 years ago
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