3 years ago

A point located at (6, -4) is reflected over the x -axis. What are the coordinates of the image?

Mathematics

1 answer:

Vika [28.1K]3 years ago

7 0

Ur answer is A or number 1

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Please answer number 1. Help!!

lara31 [8.8K]

Answer:

Step-by-step explanation:

The formula of a distance from a point (x, y) to the origin:

$d=\sqrt{x^2+y^2}$

We have P(21, 35). Substitute:

$d=\sqrt{21^2+35^2}=\sqrt{441+1225}=\sqrt{1666}\approx40.8$

7 0

4 years ago

How do you know the value of x?

lidiya [134]

To find the value of X you would have to solve the equation.
Example: for question 2

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3 years ago

Use Stokes' Theorem to evaluate C F · dr where C is oriented counterclockwise as viewed from above.

olga55 [171]

<span>∫c F · dr
= ∫∫s curl F · dS, by Stokes' Theorem
= ∫∫ <2, 0, -x> · <-z_x, -z_y, 1> dA
= ∫∫ <2, 0, -x> · <1, 0, 1> dA, since z = 2 - x
= ∫∫ (2 - x) dA.

Since the region of integration is inside x^2 + y^2 = 9, convert to polar coordinates:
∫(r = 0 to 3) ∫(θ = 0 to 2π) (2 - r cos θ) * (r dθ dr)
= ∫(r = 0 to 3) (2 * 2π - 0) * r dr
= 2πr^2 {for r = 0 to 3}
= 18π.
</span>

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3 years ago

If x = 4 and y = 3, then xy – 2x = A 4 B 6 C 19 D 40

Elden [556K]

Answer:

A) 4

Step-by-step explanation:

Plug in the value for x and y.

(4 x 3) - 2(4)

12 - 8 = 4

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3 years ago

Suppose that u⃗ =⟨−6,2⟩ and v⃗ =⟨−2,−6⟩. What is the angle between u⃗ and v⃗ , rounded to the nearest degree?

wlad13 [49]

Answer:

Ya'll ask the most complicated questions that never get answered just gooogle it dude

Step-by-step explanation:

4 0

2 years ago