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timurjin [86]
2 years ago
9

On a coordinate plane, triangle B C D has points (negative 4, 1), (negative 2, 1), (negative 4, 3). Triangle B prime C prime D p

rime has points (negative 1, negative 4), (negative 1, negative 2), (negative 3, negative 4). Triangle BCD is rotated counterclockwise to form triangle B’C’D’. What is the angle of rotation? 45° 90° 180° 360°
Mathematics
1 answer:
tatyana61 [14]2 years ago
8 0

9514 1404 393

Answer:

  90° CCW

Step-by-step explanation:

The transformation from B to B' is ...

  B(-4, 1) ⇒ B'(-1, -4)

  (x, y) ⇒ (-y, x) . . . . . matches the transformation for 90° CCW

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Plz, help ASAP!!!!!!!
Marina86 [1]

Answer: correct.

Step-by-step explanation:

8 0
2 years ago
12, 3.1.52<br><br> If f(x) = x and g(x) = 2x³, find f[g(x)], and g[f(x)]
anastassius [24]

Given that f(x) = x and g(x) = 2x^3, we have

f(g(x)) = f(2x^3) = 2x^3

and

g(f(x)) = g(x) = 2x^3

5 0
1 year ago
Tom wants to buy some protein bars and magazines for a trip he has decided to buy three times as many protein bars with magazine
kumpel [21]

Answer:12 Protein bar and 3 magazines

Step-by-step explanation:

Given

Tom purchases Protein bars 3 times as much as magazine

Each bar cost  \$ 0.7

Each magazine costs \$ 2.50

Sales tax is 6.5 %

suppose Tom buy x magazines so

Price of magazine is 2.5 x

Price of bars is 3\times 0.7x=2.1 x

Total Price=2.5 x+2.1 x=4.6 x

After sales tax =4.6x(1+0.065)=4.899 x

This must be less than \$ 20

so 4.899x < 20

x< 4.082

thus x=4

so he but 4 magazines and 12 protein bars

3 0
2 years ago
A quilter has square blocks of fabric. The area of each block is 36 in.2. The quilter decides to cut the squares along one diago
Lyrx [107]
I think the answer is H but I could be wrong
8 0
3 years ago
Solve for each of the following proportions:<br> a. 5/x=30/42<br> b. x/8=-12/32
andreev551 [17]

Answer:

A. x = 7

B. x = -3

Step-by-step explanation:

A.  5/x = 30/42

5/x = 5/7

5 = 5/7 x

5= 5x/7

5 x 7 = 5x

35 = 5x

35/5 = x

7 = x

x = 7

B.  x/8 = -12/32

x/8 = -3/8

x = - 3/8 x 8

x = -  24/8

x = -3

Hope this helps you have a gr8 day :3

5 0
3 years ago
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