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siniylev [52]
3 years ago
12

Circle A has center of (4, 5), and a radius of 3 and circle B has a center of (1, 7), and a radius of 9. What steps will help sh

ow that circle A is similar to circle B? (6 points) Translate circle A using the rule (x + 3, y - 2). Сь Dilate circle A by a scale factor of 3. Oc Rotate/circle A 90° about the center, D Reflect circle A over the x-axis,​
Mathematics
2 answers:
Katarina [22]3 years ago
8 0

Answer:

Dilate Circle A by a scale factor of 3

Step-by-step explanation:

Circle A has a radius of 3, Circle B has a radius of 9. By dilating Circle a by a scale factor of 3, it will make it the same size as Circle B, showing that the two circles are similar.

Rotating and reflecting does nothing because both circles are in the same quadrant and rotating a circle does nothing to the placement.

Translating the circle (x+3, y-2) does not put it in the same place as circle B.

Tanzania [10]3 years ago
7 0

Answer:

The other person is correct. B: Dilate circle A by a scale factor of 3.

Step-by-step explanation:

i took the test

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Write the expression in simplest form.<br> (-11/2x +3) - 2(-11/4 x - 5/2) =
Alex777 [14]

Answer:

what is it equal to

Step-by-step explanation:

3 0
2 years ago
a map that created using a scale of 1 inch equals 3 miles shows a lake with an area of 18 square inches was a actual area of the
frosja888 [35]

Answer:

Step-by-step explanation:

18in^2(3mi/in)^2

18in^2(9mi^2/in^2)

162 mi^2

8 0
2 years ago
Find the measure of Angle 1.
BartSMP [9]

Answer:

85°

Step-by-step explanation:

  • Angles in a triangle add up to 180°.
  • 40° + 55° = 95° - This means that there is already 95° in the triangle
  • To find the missing angle (angle 1) we need to do 180 - 95 which is 85°.

Hope this helps!

3 0
2 years ago
An air traffic controller is tracking two planes. To start, Plane A was at an altitude of 352 meters, and Plane B was just takin
barxatty [35]

Answe:

a) Altitude of Plane A (in meters) = 352+24t

Altitude of Plane B (in meters) = 22t

b) 352 + 24t = 22t

Step-by-step explanation:

a) We have that Plane A has an altitude of 352m, and is gaining altitude at 14m/s.

Plane B has an altitude of 0m and is gaining altitude at 22 m/s.

To know the altitudes of Planes A and B we have to add the altitude they have plus the product of the altitude they are gaining and the time in seconds:

An expression for this would be:

Altitude of Plane = x + yt

where:

x is the altitude that they start with, in meters

y is the gaining altitude in m/s

t is the time in seconds

We substitute the values for plane A

Altitude of plane A = 352m + 14m/s *t

We substitute the values for plane B

Altitude of Plane B = 0m + 22m/s*t

Altitude of Plane B = 22m/s*t

b) An equation to show that the two planes are at the same altitude we have to equalize the two expressions of the planes:

Altitude of Plane A = Altitude of Plane B

We can change this to:

352m + 14m/s*t = 22m/s*t

This is the expression.

<em>(To know how much time will it take them to have the same altitude we just have to solve for t:</em>

<em>352 + 14t = 22t</em>

<em>352 = 22t - 14t</em>

<em>352 = 8t</em>

<em>352/8 = t</em>

<em>t = 44 seconds</em>

<em>And the planes will have an altitude of:</em>

<em>Altitude of plane A = 352 + 14*44</em>

<em>Altitude of Plane A = 968 m</em>

<em> </em>

<em>Altitude of Plane B = 22*44</em>

<em>Altitude of Plane B = 968 m)</em>

4 0
3 years ago
What expression is equivenlent to 2/5 divided by 4
ehidna [41]

Answer:

4/10 divided by 4

Step-by-step explanation: multiply 2/5 by 2. Multiply on both the denominator and the numerator. If you were to simplify 4/10 you get 2/5 so that way you know if your answer is correct.

8 0
3 years ago
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