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4 years ago

Brainliest given ! Help needed!! geometry dilations !! Explain if possible.

Mathematics

1 answer:

iren2701 [21]4 years ago

5 0

If we consider each alphabet is at 1 unit, then U is at a distance of 1 unit and X is at a distance of 4 units . To find the scale factor, we need to see 1 multiply by what is equal to 4. And 1*4=4

So the scale factor is 4 . And the answer is 4 .

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What is the length of xy?

Sav [38]

Given:

$XR=x+8$

$RY=4x-10$

Since R is the midpoint of the line, we can set XR equal to RY and solve for x.

$RY=XR$

$4x-10=x+8$

$4x=x+18$

$3x=18$

$x=6$

Now we know what x is. We can plug in x to RY and XR and then add it all together to find XY. Let's find XR:

$XR=6+8$

$XR=14$

Let's find RY now:

$RY=4(6)-10$

$RY=24-10$

$RY=14$

Since we know that:

$XR+RY=XY$

We can plug in our answers:

$14+14=XY$

Final answer:

$XY=28$

8 0

4 years ago

Read 2 more answers

Which equation does the graph below represent?

Thepotemich [5.8K]

Answer:

Step-by-step explanation:

Choose any point and put it into one of the choices of equations. Let's just do (4, 2):

A) y = 2x ⇒ 2 =? 2 * 4 ⇒ 2 ≠ 8 --- eliminate

B) y =1/2x ⇒ 2 =? 4 * (1/2) ⇒ 2 = 2 --- correct; keep it

C) y = 1/2 + x ⇒ 2 =? 1/2 + 4 ⇒ 2 ≠ 4.5 --- eliminate

D) y = 2 + x ⇒ 2 =? 2 + 4 ⇒ 2 ≠ 6 --- eliminate

Thus, B is the correct answer.

Hope this helps!

4 0

3 years ago

Read 2 more answers

. A certain coin is a circle with diameter 18 mm. What is the exact area of either face of the coin in terms of p?

vitfil [10]

Answer:

$r =\frac{D}{2}=\frac{18mm}{2}= 9mm$

The area is given by:

$A= \pi r^2$

And replacing we got:

$A=\pi (9mm)^2 =81\pi mm^2$

So then we can conclude that the area of the coin is $81\pi$ mm^2

Step-by-step explanation:

For this case we know that we have a coin with a diamter of $D =18mm$ , and by definition the radius is given by:

$r =\frac{D}{2}=\frac{18mm}{2}= 9mm$

The area is given by:

$A= \pi r^2$

And replacing we got:

$A=\pi (9mm)^2 =81\pi mm^2$

So then we can conclude that the area of the coin is $81\pi$ mm^2

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3 years ago

Melanie took two identical thermometers, one with its bulb painted black and the other with its bulb painted white. She kept a l

almond37 [142]

Hi cute thing

The answer is <span>Thermometer with white bulb, because black reflects more heat than white</span>

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4 years ago

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Dilate quadrilateral ABCD using center P and your scale factor of 3. Then, fill in

never [62]

Answer:

Step-by-step explanation:

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3 years ago