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GaryK [48]
2 years ago
8

WHat is B i will mark brain thing

Mathematics
1 answer:
katen-ka-za [31]2 years ago
8 0

Answer:

C-2

Step-by-step explanation:

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A figure lies on a coordinate plane with point B located at (2,-5). The figure is rotated 90 degrees counter-clockwise around a
Rufina [12.5K]
<h3>Answer:  (12,3)</h3>

======================================================

Explanation:

R is located at (3,4). Move it 3 units to the left and 4 units down to have it move to (0,0). Call this point A. Apply the same translation rule to point B so that (2,-5) moves to (-1,-9). Let's call this point C

Now you'll use the rule (x,y) \to (-y,x) which rotates any point around the origin 90 degrees counterclockwise. So we're rotating C around A.

Point C has the coordinates (-1,-9). When you use the rotation rule (x,y) \to (-y,x) we get (-1,-9) \to (-(-9), -1) = (9, -1). We'll call this point D

Finally, undo the translation rule done at the start of the problem. So we'll go 3 units to the right and 4 units up to have point D move to point E = (12,3) which is exactly where point B' is located.

Check out the diagram below.

7 0
3 years ago
Answer all part please. I really need this so no random answers. PLEASE ILL GIVE U BRANLIEST . WORTH 100 POINTS AND IF U STEAL M
Amanda [17]

Answer:

x=44

m∠1=118°

m∠2=62°

Step-by-step explanation:

Part A: They are supplementary angles, so

2x+30+62=180

Simplify like terms,

2x+92=180

We subtract 92,

2x=88

Divide by 2,

x=44

Part B:

m∠1=2x+30 because ∠2 is vertical to 2x+30.

Plug in 44 for x,

m∠1=2(44)+30

Simplify,

m∠1=118

m∠2=62° because it is a vertical angle to the 62° angle.

3 0
3 years ago
Read 2 more answers
Use synthetic division to evaluate f(x) = –2x^3+ 3x – 6 when x = -5.
fgiga [73]

Answer:

-131

Step-by-step explanation:

Use -5 in place of x

f(x) = –2x^3+ 3x – 6

f(x) = -2*-5^3+3*5-6

6 0
2 years ago
A bag contains 6 yellow marbles and 18 red. If a representative sample contains 2 yellow marbles, then how many red would you ex
kramer

Answer:

6 red marbles

Step-by-step explanation:

We must first find our multiplier since a sample represents a population (the whole thing).

6/2 = 3, so 3 * 2 = 6.

I will use the value of 6/2, aka 3 and use that as my divisor.

18/3 = 6.

Therefore, you would expect to have 6 red marbles.

3 0
3 years ago
Which expressions are equivalent?
nasty-shy [4]
The first set of expressions bc 3x is equivalent to 3x and -7y is equivalent to -7y
6 0
3 years ago
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