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NemiM [27]
2 years ago
15

What single transformation turns (x, y) into (-y, x)???

Mathematics
1 answer:
Umnica [9.8K]2 years ago
8 0

Answer:

Counterclockwise rotation 90° or clockwise rotation 270°

Step-by-step explanation:

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Please please please tell the answer​
OlgaM077 [116]

Answer:

a. 0

b. 4^1

c. 14

d. 8

Step-by-step explanation:

8 0
3 years ago
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A piano teacher gives lessons that are each Three-fourths hour long. How many piano lessons can the teacher fit into a 12-hour w
tino4ka555 [31]

Answer:

16 lessons

Step-by-step explanation:

12 divided by .75 = 16

3 0
2 years ago
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The sine ratio of an angle is the opposite side over the adjacent side.
Agata [3.3K]

Answer:

never

Step-by-step explanation:

In a right triangle, every angle has an opposite side and an adjacent side. And there's always a hypotenuse.

The sine of an angle is the ratio of the length of the opposite side divided by the length of the hypotenuse.

The tangent ratio of an angle is the opposite side over adjacent side, it is not the sine ratio of a triangle.

For example, ABC is a right angled triangle having length of the sides are a,b,c.

So

sine\ C=\frac{a}{c}

3 0
3 years ago
I need help on number 8 please
belka [17]
Well, the area of a trapezoid is A = (b_{1} + b_{2}) * h * 1/2 so you can use the area of a parallelogram, which is A = l * w, by splitting the trapezoid into 2 triangles and one rectangle. So you'd use A = l * w for the rectangle and A = 1/2bh for the triangles. You'd get the same answer!
8 0
2 years ago
Consider the sequence 3, 6, 12, 24, 48, .... (a) Write a recursive rule to represent the sequence. (b) Write an explicit rule to
saveliy_v [14]

Answer:

  a. a[1] = 3; a[n] = 2a[n-1]

  b. a[n] = 3·2^(n-1)

  c. a[15] = 49,152

Step-by-step explanation:

Each term of the given sequence is 2 times the previous term. (This description is the basis of the recursive formula.) That is, the terms of the given sequence have a common ratio of 2. This means the sequence is geometric, so the formulas for explicit and recursive rules for a geometric sequence apply.

The first term is 3, and the common ratio is 2.

<h3>(a)</h3>

The recursive rule is ...

  a[1] = 3

  a[n] = 2×a[n-1]

__

<h3>(b)</h3>

The explicit rule is ...

  a[n] = a[1]×r^(n-1)

  a[n] = 3×2^(n-1)

__

<h3>(c)</h3>

The 15th term is ...

  a[15] = 3×2^(15-1) = 3×2^14

  a[15] = 49,152

5 0
2 years ago
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