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bija089 [108]
3 years ago
9

What is the value of 30-2(7+2)-1? A. 11 B.14 C.17 D. 19 HURRYYYU

Mathematics
2 answers:
OLEGan [10]3 years ago
7 0

Answer:

11

Step-by-step explanation:

30-2(7+2)-1

PEMDAS says parentheses first

30-2(9)-1

Then multiply

30 -18 -1

Then subtract

12-1

11

SIZIF [17.4K]3 years ago
5 0

Answer:

A. 11

Step-by-step explanation:

30 - 14 -4 - 1

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Aloiza [94]

That which is equivalent to tanθ is A sinθ/cosθ

To answer the question, we need to know what tanθ is

<h3>What is tanθ?</h3>

Tanθ is a trigonometric identity which is the tangent of the angle .

Now, from the unit circle, with radius, r = 1, we have that tanθ = y/x.

Also, the sine of the angle θ is sinθ = x/1 = x

And also, the cosine of the angle θ is cosθ = y/1 = y

Since we have that

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Substituting the values of the variables y and x into tanθ, we have

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So, that which is equivalent to tanθ is A sinθ/cosθ

Learn more about tanθ here:

brainly.com/question/26609988

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2 years ago
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3 years ago
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What makes the statement true? 7^-2=?<br> A. 49<br> B. 1/49<br> C. 14<br> D. 1/14
pogonyaev
49
{7}^{ - 2}  \\ 7 \times  - 7 =  - 49
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3 years ago
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