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3 years ago

What is the value of cos-1 (-√3/2

Mathematics

1 answer:

melamori03 [73]3 years ago

7 0

Answer:

Step-by-step explanation:

This question is asking you "what angle gives you a cos of -square root 3/2"? The cosine by definition is the side adjacent to the angle over the hypotenuse. So set up the right triangle. We do not know which quadrant we are in since we are not told that, but if the cos is negative, then we are in either QII or QIII. In QII this is a 150 degree angle, and in QIII this is a 210 degree angle.

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The length of the highway is 700 miles. If 1 inch represents 75 miles, what is the length of the highway on the map?

True [87]

Answer:

9.33333 inches.

Step-by-step explanation:

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3 years ago

When Hope kicked the soccer ball, it traveled a horizontal distance of 85 feet, and at its highest reached 30 feet what steps do

marissa [1.9K]

Answer:

h = -0.0166t^2 + 30.

Step-by-step explanation:

The graph of the flight is a parabola which opens down and is symmetrical about the y axis, passes through the x axis at -42.5 and 42.5 and has a vertex at (0, 30).

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4 years ago

2x + 3y + x + 7 identidy the terms, like terms, coefficients, and constants in each expression

charle [14.2K]

Answer:

terms, 2x, 3y , x and 7,

like terms, 2x, 3y, x and 7

Coefficient. 2 is the coefficient of 2x and 3 is the coefficient of 2y 1 is the coefficient of x

Constant. 7

Step-by-step explanation:

Given:

$2x+3y+x+7$

Terms are the number of parts in the expression.

there are four terms 2x, 3y , x and 7,

Like terms are the part of the polynomials. 2x, 3y and x are like terms because they both have an x attached. 7 is like terms because they have nothing attached.

The number that are attached to variable is called Coefficient.

So In the term 2x the number 2 is a coefficient because it is attached to x similarly 3y the number 3 is a coefficient because it is attached to y

and in the term x the number 1 is a coefficient.

Constant are the numbers that are not attached to any variable and it is not change. Such as 7 is the constant term.

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3 years ago

1. What is the constant of variation for the relationship f(x) = 40x?

yKpoI14uk [10]

1. The coefficient of x is the constant of variation. It is 40.

2. -12 = -2*6 . . . . . you know this because you know your times tables
.. f(x) = -2x

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3 years ago

What is the value of cos-1 (-√3/2​

What is the value of cos-1 (-√3/2