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3 years ago

What is -5-3(-5x-3)-3x

Mathematics

2 answers:

Leokris [45]3 years ago

8 0

−5−3(−5x−3)−3x

- 5 - ( - 15x - 9 ) - 3x

-5 + 15x + 9 - 3x

(-5 + 9) + (15x - 3x)

4 + 12x

lukranit [14]3 years ago

7 0

Answer:

12x+4

Step-by-step explanation:

when simplified you would get 12x + 4

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motikmotik

To find the answer, you convert the percentage to a decimal. 140% = 1.4

Then you divide 56 by 1.4

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3 years ago

Read 2 more answers

How do I verify this identity? I know you should write sin2a as sin(a+a).

Kisachek [45]

SOLUTION

Given the question in the image, the following are the solution steps to verify the identity

STEP 1: Write the given identity

$\sin 2\alpha=2\sin \alpha\cos \alpha$

STEP 2: Verify the identity

$\begin{gathered} \sin 2\alpha=2\sin \alpha\cos \alpha \\ \text{Consider the left hand side of the above trigonometry identity.} \\ \text{That is, }\sin 2\alpha\text{.} \\ \text{ Rewrite }\sin 2\alpha\text{ as }\sin (\alpha+a) \\ \text{ It is known that }\sin (a+b)=\sin (a)\cos b+\cos (a)\sin (b) \\ U\sin g\text{ this statement above, we have;} \\ \sin (\alpha+a)=\sin a\cos \alpha+\cos a\sin \alpha \\ \text{It is known that }xy+yx=xy+xy=2\times xy=2xy \\ U\sin g\text{ this statement above, we have;} \\ \sin a\cos \alpha+\cos a\sin \alpha=\sin a\cos \alpha+\sin \alpha\cos \alpha=2\times\sin \alpha\cos \alpha=2\sin \alpha\cos \alpha \\ \text{Hence, }\sin 2\alpha=2\sin \alpha\cos \alpha \end{gathered}$

The verification of the identity is as seen above.

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10 months ago

What is the value of p and q

Oksanka [162]

Answer:

p=122

q=90

Step-by-step explanation:

p=180-58=122

q=180-90=90

4 0

3 years ago

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago