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kkurt [141]
3 years ago
5

Triangle ABC has sides of measure a = 4 cm, b = 9 cm, c = 7 cm.

Mathematics
1 answer:
Studentka2010 [4]3 years ago
3 0
Sin=opposite÷hypotenuse

cos=adjacent÷hypotenuse

tan=opposite÷adjacent

hypotenuse is the longest side, the opposite is the side that is opposite of the angle you're trying to find, and the adjacent side is the side that is not the hypotenuse or opposite.

plug it into your calculator. it is very simple :))

for future reference if you attach a photo it will be easier for people to help you.
You might be interested in
Given that sin theta = 1/4, 0
GaryK [48]
Answer: cos(Θ) = (√15) / 4

Explanation:

The question states:

1) sin(Θ) = 1/4

2) 0 < Θ < π / 2

3) find cos(Θ)

This is how you solve it.

1) Use the fundamental identity (in this part I use α instead of Θ, just for facility of wirting the symbols, but they mean the same for the case).

(cos \alpha )^2 + (sin \alpha )^2 =1

2) From which you can find:

(cos \alpha )^2 = 1 - (sin \alpha )^2

3) Replace sin(α) with 1/4

=> (cos \alpha )^2 = 1 - (1/4)^2 = 1 - 1/16 = 15/16

=> cos \alpha =+/- \sqrt{15/16} = +/- (\sqrt{15} )/4

4) Given that the angle is in the first quadrant, you know that cosine is positive and the final answer is:

cos(Θ) = \sqrt{15} /4.

And that is the answer.
6 0
3 years ago
A data set is normally disturbed. As data points are removed from both ends of the range, what happens to the display of data?
sergij07 [2.7K]

Answer: The display becomes skewed left.

Step-by-step explanation:

7 0
3 years ago
There are 100 balloons in total the ratio between the yellow and blue balloons is 8 to 12 how many are yellow
Virty [35]

If you have 8 yellow balloons for every 12 blue balloons, then if you have 20 balloons in total, 8 out of 20 of those balloons will be yellow. Then you can set up this ratio.

Then, you can use either cross multiplication or multiply the numerator and denominator by the same number to help solve for x. Personally, I prefer cross multiplication.

Finally, solve for x and if you had 100 balloons, you will have 40 yellow balloons.

4 0
3 years ago
Read 2 more answers
Simplify (2/9)^3<br><br> A. 8/729<br> B. 6/9<br> C. 2/729<br> D. 8/9<br><br> No guessing please
Lunna [17]
Eliminate the exponent
2^3=8
9^3=729

The simplified answer would be 8/729.

Hope this helps! 
7 0
3 years ago
I NEED HELP QUICK ASAP!
kramer
Triangle 1 area : 6×4 /2 -> 24/2 -> 12
triangle 2 area : 9×8 /2 -> 72/2 -> 36
rectangle 1 area : 6×4 -> 24
rectangle 2 area : 15×4 -> 60
12+36+24+60
48+24+60
72+60
132
8 0
3 years ago
Read 2 more answers
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