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2 years ago

Kenneth solved a certain number of problems and Harold solved 2 more than twice as many. Together they

Mathematics

1 answer:

Inessa [10]2 years ago

6 0

H(arold) = 2 + 2*K(enneth)

H = 2 + 2K

H + K = 38

Substitution:

2 + 2K + K = 38

3K = 36

K = 12

Kenneth solved 12 problems and Harold solved (2(12) + 2 = 24 + 2 =) 26 problems

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Answer:

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<u>Answer:</u>

The basic identity used is $\bold{\sin ^{2} x+\cos ^{2} x=1}$ .

<u>Solution: </u>

In this problem some of the basic trigonometric identities are used to prove the given expression.

Let’s first take the LHS:

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Step two:

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2 years ago

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Step-by-step explanation:

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3 years ago

Suppose a triangle has two sides of length 33 amd 37, and that the angle between these two sides is 120°. What is the length of

jeka57 [31]

Answer:

c = 60.65 cm

Step-by-step explanation:

Given that,

The two sides of a triangle are 33 cm and 37 cm.

The angle between these two sides is 120°.

We need to find the length of the third side of the triangle. Let c is the third side. Using cosine rule,

$c^2=a^2+b^2-2ab\cos C$

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