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2 years ago

What is the value of the x-coordinate of point A?

Mathematics

1 answer:

OLEGan [10]2 years ago

6 0

Answer: F (cos(230)).
Explanation:
Cosine corresponds to the x coordinate of points on a circle when the radius is drawn in like this, so the answer would be the cos of that angle, but you have to account for the fact that the 50 degree angle marked is just the reference angle not the entire angle so you have to add 180 degrees to that to get 230.

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Please help help help help please help will give brainliest if correct

Margarita [4]

Answer:

15 divided by 3 = 5

Step-by-step explanation:

21 divided by 3 = 7

6 divided by 3 = 2

Have a Good Day : )

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3 years ago

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PLZ HURRY!!!!!!!!!!!!! Simplify. −4x^2(5x^4−3x^2+x−2)

Simora [160]

$\bold{Answer}$

$\boxed{\bold{-20x^6+12x^4-4x^3+8x^2}}$

$\bold{Explanation}$

$\bold{Simplify: \ -4x^2\left(5x^4-3x^2+x-2\right)}$

$\bold{------------------}$

$\bold{Distribute \ Parenthesis}$

$\bold{\left(-4x^2\right)\cdot \:5x^4+\left(-4x^2\right)\left(-3x^2\right)+\left(-4x^2\right)x+\left(-4x^2\right)\left(-2\right)}$

$\bold{Apply \ Addition \ / \ Subtraction \ Rules: \ +\left(-a\right)=-a,\:\:\left(-a\right)\left(-b\right)=ab}$

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$\bold{Simplify \ -4\cdot \:5x^4x^2+4\cdot \:3x^2x^2-4x^2x+4\cdot \:2x^2: \ -20x^6+12x^4-4x^3+8x^2}$

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$\boxed{\bold{Eclipsed}}$

5 0

3 years ago

How do you explain a diameter of 0.00085 inches using scientific notation

dezoksy [38]

Answer:

8.5 $E^{-4}$ inches

Step-by-step explanation:

Scientific scientific notation is where the super small / super large number is multiplied by a 10 (E) to the power of a number. Here, the number is smaller than 8.5 so our power must be negative. As we are making it four "places" bigger, we use the exponent of -4.

Hope this helps, have a nice day! :D

8 0

2 years ago

Write the following in terms of sin Θ and cos Θ; then simplify if possible. (Leave your answer in terms of sin Θ and/or cos Θ.)

Marysya12 [62]

Answer:

6 cos Θ

Step-by-step explanation:

sin Θ cot Θ + 5 cos Θ =

= sin Θ × cos Θ / sin Θ + 5 cos Θ

= cos Θ + 5 cos Θ

= 6 cos Θ

3 0

3 years ago

A120 B108 C135 D144 Please help me

Sloan [31]

Answer:

B - 108

Step-by-step explanation:

A regular pentagon is 540 degrees. Divide 540 by 5 (since there are five sides) which equals 108 degrees.

8 0

3 years ago

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