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Rus_ich [418]
3 years ago
5

Which is the correct identity for cos(π/2-θ) ? A. cos θ B. sin θ C. sec θ D. csc θ

Mathematics
2 answers:
icang [17]3 years ago
7 0
I believe the answer is D. I’m terribly sorry if I got it wrong
ella [17]3 years ago
6 0

Answer:

B. sin

Step-by-step explanation:

sin A is equivalent to cos(pi/2-a)

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kvasek [131]

Answer:Mapping Rule A mapping rule has the following form (x,y) → (x−7,y+5) and tells you that the x and y coordinates are translated to x−7 and y+5. Translation A translation is an example of a transformation that moves each point of a shape the same distance and in the same direction.

Step-by-step explanation:

3 0
2 years ago
If a = 12 and 120% of a is equal to 80\% of bthen what is a + b ?
Novosadov [1.4K]

Answer:

The answer is 30

Step-by-step explanation:

First you have to find 120% of a (12).

\frac{12}{1}  \times  \frac{120}{100}  = 14.4

Therefore; 14.4 is 80% of b, and we are trying to find 100% of b

14.4 = 80\% \\ x = 100\%

we do not know what is 100% therefore we call it *x*. In order to find this unknown value *x* we cross multiply.

14.4 \times 100\% = 80\% \times x

This is the same as saying;

14.4  \times 1 = x \times  \frac{4}{5}

100% percent would be 1 because it is the whole number we are trying to find. The 80% would be 4/5. To get 4/5 you can simply break down 80/100 ( this is 80% as a fraction).

so the new equation is: 14.4= 4/5x

We divide both sides by 4/5. Then we will get x tobe equal to 18. Therefore b is 18. We were asked to find (a + b) so.<em> </em><em>1</em><em>8</em><em>+</em><em>1</em><em>2</em><em> </em><em>=</em><em> </em><em>30</em>

4 0
2 years ago
Solve for q.<br><br> s = 4p + 4q solve the equation
Harlamova29_29 [7]

Answer:

q = \frac{s -4p}{4}\\

Step-by-step explanation:

s = 4p +4q \\ 4p +4q = s \\ 4p +4q -4p = s -4p \\ 4q = s - 4p \\ \frac{4q}{4} = \frac{s -4p}{4} \\ q = \frac{s -4p}{4}

4 0
3 years ago
Convert the complex number to polar form: 10 + 6i
ziro4ka [17]
Use photomath,math lenses,mathaway u welcome.
7 0
3 years ago
What is the answer to 9×<br><img src="https://tex.z-dn.net/?f=9x%20%7B%7D%5E%7B2%7D%20%20%2B%207x%20-%202from8x%20-%2010" id="Te
goldenfox [79]

Answer:

81x^2+7x-16x-10

81x^2-9x-10

7 0
3 years ago
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