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2 years ago

Write the expression as the sine or cosine of an angle. Sin pi/3 cos pi/7 - sin pi/7 cos pi/3

Mathematics

1 answer:

Delicious77 [7]2 years ago

8 0

The expression can be written as : sin(π/3 - π/7)

<h3>what are trigonometric functions?</h3>

Trigonometric functions are functions that gives the relationship between the sides and angles of a triangle.

some of the trigonometric functions are sine, cosine, tangent.

Analysis:

Let A = π/3

B = π/7

If sin(A-B) = sinAcosB - cosAsinB

then sinπ/3cosπ/7 - sinπ/7cosπ/3 = sin(π/3 - π/7)

Learn more about Trigonometry : brainly.com/question/24349828

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The graph of a line has a slope of -3 and passes through the point (-6,-4).

prohojiy [21]

Answer:

(A) y+4=-3(x+6)

Step-by-step explanation:

The point-slope form of the equation of a line whose slope is m and passes through the point $(x_1, y_1)$ is: $y-y_1=m(x-x_1)$

Given the point: $(x_1, y_1)=(-6,-4)$

Slope, m=-3

$x_1=-6\\y_1=-4$

Substituting these values into: $y-y_1=m(x-x_1)$ , we obtain the point slope form of the equation:

$y-(-4)=-3(x-(-6))\\\\y+4=-3(x+6)$

The correct option is A.

6 0

3 years ago

Select the property of equality used to arrive at the conclusion. If x - 3 = 7, then x = 10

goldenfox [79]

X - 3 = 7
add 3 to both sides
x - 3 + 3 = 7 + 3
x = 10

addition property of equality

4 0

3 years ago

I need help with this

Fudgin [204]

You can’t solve this, not enough information

5 0

3 years ago

Consider the equation 5 +x=n.

Marat540 [252]

Answer:

It's C.

Step-by-step explanation:

Any value of x must have a bigger negative number than 5. In this case, formally you say that all x values must be LESS than 5 only.

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3 years ago

10 miles = ________feet

lisov135 [29]

10 miles=52800 feet (I know for sure)

7 0

3 years ago

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