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Daniel [21]
3 years ago
6

After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle are A'(6,3), B'(-2, 1)

Mathematics
1 answer:
Fed [463]3 years ago
8 0

Answer:

  • A(3, -6)
  • B(1, 2)
  • C(7, -1)

Step-by-step explanation:

Rotation by -90° about the origin is the transformation ...

  (x, y) ⇒ (y, -x)

So, your pre-image points are ...

  A'(6, 3) ⇒ A(3, -6)

  B'(-2, 1) ⇒ B(1, 2)

  C'(1, 7) ⇒ C(7, -1)

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Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Check all that apply.
Katyanochek1 [597]

The correct answer is –6x + 15 < 10 – 5x.

We can tell this by solving for x.

–3(2x – 5) < 5(2 – x) ----> Multiply to the parenthesis.

-6x + 15 < 10 - 5x ----> This is answer #3 and now we add 5x to both sides

-x + 15 < 10 ----> subtract 15 from both sides

-x < -5 ----> Divide by -1

x > 5 (Note that you have to change the direction of the sign when dividing by a -1. Therefore it does not match answer #1).

5 0
3 years ago
Brianliest help please
Mamont248 [21]

Answer:

answer is option C

3+7=10

7-3=4

5 0
2 years ago
Read 2 more answers
A baker can make 120 cupcakes in 2 hours. At that rate, how many cupcakes can he make in 3.5 hours? *
Valentin [98]

Answer:

210

Step-by-step explanation:

first I took 120 and divided by four to show how many cupcakes he can make in thirty minutes (.5 of an hour). this was 30. the reason we divided by four is because in two hours theres four halves.

120÷4=30 for half an hour

30x2=60 this is how many cupcakes he can make in one hour

since we already know how many he makes in two hours we're going to use that

120+60=180 (three hours)

120+60=180 (three hours)180+30 (half an hour) =210

4 0
2 years ago
EXPERTS PLS HELPPP- q.8
Klio2033 [76]
Your answers are:
1: 14
2: 66
3: 4
4: 1/16 or 0.0625
5: 17
6: 1

Hope this helps!
7 0
3 years ago
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Help me please! Ommfhdhs
Klio2033 [76]
I don’t think I know but have a good day
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