2 years ago

If 2sinθ=65, what is cos(90°−θ)? A 3/5 B 4/5 C 5/4 D 5/3

Mathematics

1 answer:

Law Incorporation [45]2 years ago

7 0

Answer: A

Step-by-step explanation:

You might be interested in

<img src="https://tex.z-dn.net/?f=1%20%2B%20%20log_%7B2%7D%28x%20-%202%29%20%20%3D%20%20%20log_%7B2%7Dx" id="TexFormula1" title=

fenix001 [56]

Move all the logarithms on the left hand side, and all the constants on the other:

$\log_2(x-2) - \log_2(x) = -1$

Use the rule of logarithms

$\log_a(b) - \log_a(c) = \log_a\left(\dfrac{b}{c}\right)$

To rewrite the equation as

$\log_2\left(\dfrac{x-2}{x}\right) = -1$

Evaluate 2 to the power of each side:

$\dfrac{x-2}{x} = 2^{-1} = \dfrac{1}{2}$

Multiply both sides by 2x:

$2(x-2) = x \iff 2x-4 = x \iff x = 4$

6 0

4 years ago

Read 2 more answers

On an architects blueprint, 1 inch corresponds to 9 feet. If an exterior wall is 60 feet long, find how long the blueprint measu

andre [41]

Answer:

x = 6.67 inches

Step-by-step explanation:

Set upa s a proportion

x/60 = 1/9

x = 1/9 * 60

x = 6.67 inches

6 0

3 years ago

Manny and Evan were flying paper airplanes. Manny’s airplane flew 36.5 centimeters and Evan’s airplane flew 18 centimeters. How

professor190 [17]

First subtract manny value 36.5 from Evan values 18 which will give u 18.5 cm which then u have to convert. Since 1 cm is about .4, we can multiply 18.5 by .4 to get the answer 7.4 inches

7 0

3 years ago

Read 2 more answers

CAN I ALSO GET AN EXPLANATION PLEASE!

ddd [48]

Answer:

ok no prob ...........lolllllll

7 0

3 years ago

2) Dorothy types 120 words per minute. How many words does Dorothy type in

Damm [24]

Answer:

D (210)

Step-by-step explanation:

120 times 1.75 equals 210

6 0

3 years ago

Read 2 more answers