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3 years ago

Assume that O is a positive acute angle. Given: sin 0= 20/29 29 Find: cos 20

Mathematics

1 answer:

drek231 [11]3 years ago

8 0

Cos:29/21 ( I think I’m not sure )

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Determine the value of c for each figure

erica [24]

Answer:

can you tell me a little bit more?

6 0

3 years ago

Hurry 50 points for correct answer

Ad libitum [116K]

Answer: "7 is a solution to the original equation. The value –1 is an extraneous solution."

Step-by-step explanation:

The equation $x=\sqrt{6x+7}$ can be solved by squaring both sides:

$x^2 = 6x + 7\\\\x^2 - 6x - 7 = 0\\\\(x-7)(x+1) = 0$

We can see that -1 and 7 are solutions, but make sure they are not extraneous by substituting them in the original equation:

$1 = \sqrt{-1}\\ 7 = \sqrt{49}$

The square root of 49 equals 7, but the square root of -1 is an imaginary number.

The correct choice is "7 is a solution to the original equation. The value –1 is an extraneous solution."

4 0

3 years ago

21-3+18÷6=6 Determine if True?

Lunna [17]

Answer:

False

Step-by-step explanation:

$21-3+18\div 6 \\\\=21-3+3\\\\=21-0\\\\=21\neq 6$

7 0

2 years ago

Read 2 more answers

What is an equivalent expression for x=3y-2

ioda

X = 3(y - 2/3) ...distribute thru the parenthesis
x = 3y - 6/3...reduce
x = 3y - 2

so ur answer is : x = 3(y - 2/3)

5 0

3 years ago

What is the slope of the line that passed through (3,-4) and (4,9)

Advocard [28]

Step-by-step explanation:

Step 1: Find the slope

$m=\frac{y_2-y_1}{x_2-x_1}$

$m=\frac{9-(-4)}{4-3}$

$m =\frac{9+4}{1}$

$m=13$

Answer: The slope is 13

5 0

4 years ago