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3 years ago

Point C is located at (2,8). If it is reflected across the x axis, where will C be located?

Mathematics

2 answers:

salantis [7]3 years ago

7 0

Answer:

(2, -8)

Step-by-step explanation:

The answer is (2, -8) because when you reflect a point across the x-axis, the x-coordinate always remains the same, but the y-coordinate will change. In other words, the y-coordinate becomes the opposite (signs change). In this case, since the y-coordinate was positive 8, when you reflect the point across the x-axis, the y-coordinate will change to -8

ELEN [110]3 years ago

5 0

This answer is 2, -7

I think
Good luck :)

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8/v + 9/x=y Solve for v

Andreas93 [3]

The answer is v= -8x/-xy+9

Here is the step by step process (This is going to be long):

1. 9v+8x=vxy

Multiply both sides by vx

2. 9v+8x+−vxy=vxy+−vxy

−vxy+9v+8x=0

Add -vxy to both sides

3. −vxy+9v+8x+−8x=0+−8x

−vxy+9v=−8x

Add -8x to both sides

4. v(−xy+9)=−8x

Factor out the variable v

5. v(-xy+9)/-xy+9 = -8x/-xy+9

v = -8x/-xy+9

Divide both sides by -xy+9

4 0

3 years ago

When flying at an altitude of 5 miles, the lines of sight to the horizon looking north and south make about a 173.7 degree angle

oksian1 [2.3K]

5 miles high is one of the sides of a triangle depending on accuracy level
h^2=x^2+y^2
we don't have 2 distances
Tan A=O/a
O=a tan A
We solve for O because the angle is at the top of the line going up and we want the opposite angle that is along the ground
O=5×tan(173.7/2)=90.854033512
The distance he can see is:
90.85*2~181.7 miles

Now we need to find the distance between lines:
The north south distance between each line is 69 miles
thus the number of degrees he will see will be:
181.7/69
=2 19/30

7 0

3 years ago

Can someone please answer this question Giving brainleist!

inna [77]

Answer:

a) 9000

b) 40

c) 630

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3 years ago

estamos construyendo una carretera que enlace los puntos a = 12 ,21 y b =(17,23) otro punto se encuentra en c =(3,9) es posible

Nadusha1986 [10]

Answer:

is not possible

Step-by-step explanation:

The question in English is

we are building a road that links the points a = (12 ,21) and b =(17,23) another point is in c =(3,9) it is possible that a single road allows to join these three points?

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$