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nekit [7.7K]
2 years ago
14

Which relationship in the triangle must be true?

Mathematics
2 answers:
Elan Coil [88]2 years ago
8 0

Cosine stands for "complementary sine."  The sine of an angle is the cosine of the complementary angle and vice versa.  Complementary angles add to 90°.

Answer: sin(B) = cos(90 - B)

It's true for any angle, and it doesn't have much particularly to do with a triangle.

e-lub [12.9K]2 years ago
8 0
COS(B)=sin(180-B).







Because a triangle have a 180 degree angle
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I forgot to bring pen and paper lol<br> If u click there will be pic ;)
creativ13 [48]

Answer:

99,117

Step-by-step explanation:

1) Use the partial sum method.

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+ 8 0 6 2 5

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1 0 0 0 (400+600)

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6 0
1 year ago
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david is drinking a sports drink that us 24 ounces. he drinks 3 ounces in 5 minutes what percentage of the sports drink will dav
adoni [48]

Answer:

18 ounces

Step-by-step explanation:

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8 0
2 years ago
A tower stand on a horizontal plane. P is the top and Q is the bottom of the tower. A and B are two points on this plane such th
pochemuha

Answer:

32√5

Step-by-step explanation:

We have the right triangles PQA and PQB as well as the given right triangle QAB.

cot(PAQ) = 2/5 = QA/PQ

cot(PBQ) = 3/5 = QB/PQ

cot(PAQ) / cot(PBQ) = (2/5) / (3/5) = 2/3

cot(PAQ) / cot(PBQ) = (QA/PQ) / (QB/PQ) = QA / QB

QA / QB = 2/3

QA = (2/3) QB

QB = (3/2) QA

By the Pythagorean Theorem we have:

(QA)² + 32² = (QB)²

(QA)² + 32² = (3/2 QA)²

(QA)² + 1024 = (9/4) (QA)²

(5/4) (QA)² = 1024

(QA)² = (4/5)1024 = 4096/5

QA = 64/√5

Solve for PQ.

cot(PAQ) = QA/PQ

PQ = QA / cot(PAQ)

PQ = (64/√5) / (2/5) = 32√5

The height of the tower is 32√5.

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3 years ago
What is thirty-four and twelve hindredths in expanded form?
strojnjashka [21]
The answer is two hundred thirty four.
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3 years ago
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Answer: My best answer would be independent

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