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melisa1 [442]
3 years ago
7

EFG has coordinates E(-3, -5), F(-9,1), and G(-6,4). What are the coordinates of the vertices of the image after a reflection in

the X-axis?

Mathematics
1 answer:
stepladder [879]3 years ago
7 0

Answer:

Option D is the correct answer

Step-by-step explanation:

When any image is reflected over x-axis, the y-coordinates of the vertices of image are changed to their opposite while the x-coordinates remain the same i.e. (x,y) is changed to (x,-y)

Given points are:

E(-3, -5), F(-9,1), and G(-6,4)

The new points after reflection will be:

E(-3, -5) => E'(-3,5)

F(-9,1) => F'(-9,-1)

G(-6,4) => G'(-6,-4)

Hence,

Option D is the correct answer

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soldi70 [24.7K]
I believe a would be on the first line.
8 0
2 years ago
Angle C is inscribed in circle O.
tatuchka [14]

Answer:

The radius of circle O is 8.5 Units

Step-by-step explanation:

Solution

The radius of a circle is refereed to as the  half of the diameter.

Now,

On how to figure out the length of AB, we apply the  Pythagorean's equation or formula which is given below

Thus,

a² + b² = c²

(15)² + (8)² = c²

225 + 64 = c²

√289 = √c²

Then

c = 17

What this shows is that  AB is 17 units.

Since we have gotten the diameter, the next step is to divide into half the know the radius value

Therefore,

17 ÷ 2 = 8.5 Units

= 8.5 Units.

6 0
3 years ago
How many real roots and how many complex roots does this expression have?<br> (x+7)^7
Feliz [49]

Answer:

One real root, with multiplicity 7.

Step-by-step explanation:

The given expresion is

{(x + 7)}^{7}

This is a seventh degree polynomial.

According to the fundamental theorem of Algebra, the expression has a potential 7 roots both real and complex.

This expression has one real root, with multiplicity , 7.

3 0
3 years ago
Afan pays $875 for 3 premium seat tickets. Another fan pays $2125 for 8 premium seat tickets. Write a linear model for the cost
grandymaker [24]

The equation is : C=250t +125 where C is the cost and t represent the number of tickets purchased.

Step-by-step explanation:

Let the cost of premium seat ticket be C

Let the number of tickets a fan buys to be t

Then, presenting the information as ordered pairs of coordinates (x,y) will be;

Fan 1, (3,875)

Fan 2, (8,2125)

Plot the ordered pairs as coordinates on a graph tool, find the slope of the linear graph and equation in slope intercept form as;

m=Δy/Δx

m=2125-875/8-3

m=1250/5

m=250

Equation of the graph,

Δy/Δx=250

y-875/x-3 =250

y-875=250(x-3)

y-875=250x-750

y=250x-750+875

y=250x+125

C=250t +125 where C is the cost and t represent the number of tickets purchased

Learn More

Slope-intercept form equation: brainly.com/question/11016508

Keyword : slope-intercept form,cost

#LearnwithBrainly

7 0
3 years ago
If DE is congruent to KR and O is the midpoint of ER and DK, which of the following congruence postulates can be used
Deffense [45]

Answer:

ASA

Step-by-step explanation: I'm not sure I had just found a key.

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3 years ago
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