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elixir [45]
2 years ago
13

Anyone who’s good at trigonometry?

Mathematics
2 answers:
romanna [79]2 years ago
4 0

Answer:

Step-by-step explanation:

u know the sinus theorem for the area of a triangle

u can search it sinus theorem triangle

for the solution:

12.4/sin(74)=y/sin(39)

y=7.85 cm

Musya8 [376]2 years ago
3 0

Answer:

Length y is 8.12cm

Step-by-step explanation:

Use the law of sines.

\frac{sin(a)}{A} =\frac{sin(b)}{B} ⇒\frac{sin(39)}{y} =\frac{sin(74)}{12.4}

y(\frac{sin(39)}{y}) =y(\frac{sin(74)}{12.4})

sin(39)=y(\frac{sin(74)}{12.4})

y=\frac{sin(39)}{sin(74)/12.4}

y=\frac{12.4*sin(39)}{sin(74)}

y=8.118052433 if you don't round.

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san4es73 [151]
The scale factor is:
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8 0
3 years ago
Kevin said that if you triple his age the result will be 1 less than his mother age
Ivahew [28]
Basically, this problem is saying that if you multiply x by 3, then you will get a number that is one less than y. So, if you switch that around a bit, then the problem is saying that if you subtract 3x from y, you'll get 1. 

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8 0
3 years ago
How many days will it take for a sum of $4,000 to earn $80 interest if it is deposited in a bank paying ordinary simple interest
Maksim231197 [3]

Answer:

It will take 146 days to earn an interest of $80.

Step-by-step explanation:

The simple interest formula is:

I=\frac{P\times r\times t}{100}

It is provided that:

I = $80

P = $4,000

r = 5% p.a.

Compute the time required as follows:

I=\frac{P\times r\times t}{100}

t=\frac{I\times 100}{P\times r}

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4 0
2 years ago
Given the following functions, evaluate each of the following:
Olegator [25]

Answer:

1. -6

Step-by-step explanation:

f(x)=x²-9

g(x)= x-3

1. (f+g)(2) =

(2²-9)+(2-3) = (4-9)+(2-3) = (-5)+(-1)= -6

8 0
2 years ago
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Softa [21]

Answer

A. -128, 254, -508

5 0
2 years ago
Read 2 more answers
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