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2 years ago

Please help I will call you brainliest

Mathematics

1 answer:

Fynjy0 [20]2 years ago

7 0

Answer:

number 2

Step-by-step explanation:

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What is the value of cosθ given that (−2, −3) is a point on the terminal side of θ ?

snow_tiger [21]

Answer:

-0.555

Step-by-step explanation:

The terminal point of the vector in this problem is

(-2,-3)

So, it is in the 3rd quadrant.

We want to find the angle $\theta$ that gives the direction of this vector.

We can write the components of the vector along the x- and y- direction as:

$v_x = -2\\v_y = -3$

The tangent of the angle will be equal to the ratio between the y-component and the x-component, so:

$tan \theta = \frac{v_y}{v_x}=\frac{-3}{-2}=1.5\\\theta=tan^{-1}(1.5)=56.3^{\circ}$

However, since we are in the 3rd quadrant, the actual angle is:

$\theta=180^{\circ} + 56.3^{\circ} = 236.3^{\circ}$

So now we can find the cosine of the angle, which will be negative:

$cos \theta = cos(236.3^{\circ})=-0.555$

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2 years ago

Solve the Equation: x+10=11<br> m

polet [3.4K]

Answer:

x = 1?

Step-by-step explanation:

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2 years ago

Find the sum of these polynomials. (x^2 - x + 7) + (9x^2 + 6)

Rina8888 [55]

The answer is 10x^2-x+13

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2 years ago

During 2002, the average person ate 200.8 pounds of meat. How much meat does a family of 3 people eat in year?

dem82 [27]

Hi there! An average person ate 200.8 pounds of meat, so we would multiply that number by 3 to see how much meat the family ate altogether. 200.8 * 3 is 602.4. There. A family of 3 would eat 602.4 pounds of meat in a year.

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Round each number to the nearest hundred thousand 179,426 2

vladimir1956 [14]

200,000 thousand is the answer kid.

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