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pochemuha
3 years ago
11

Given Triangle ABC with A(2, 3), B(0, 6), and C(2,6). Write down the coordinates of the image after the following composition; r

eflection over the line y = -x followed by a rotation of 90 degrees clockwise.
Mathematics
1 answer:
shutvik [7]3 years ago
6 0

Answer:

<em>A"( - 3, 2), B"( - 6, 0), and C"( - 6, 2) </em>

Step-by-step explanation:

Rotation of 90° clockwise rule :

(x, y) ----> ( y , - x )

A(2, 3), B(0, 6), and C(2, 6)

A'(- 2, - 3), B'(0, - 6), and C'( - 2, - 6)

<em>A"( - 3, 2), B"( - 6, 0), and C"( - 6, 2)</em>

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Consider the quadratic equation 2x2 + 3x + 5 = 0.
Anastaziya [24]

Answer:

The discriminant of this quadratic equation is less than zero.

This means the quadratic equation will have no real solution(s) and two complex solution(s).

Step-by-step explanation:

The discriminant is found using the formula b^2 - 4ac.

Therefore, the discriminant is (3)^2 - 4(2)(5), which yields -31.

Since the discriminant is negative, there are no real solutions.

4 0
3 years ago
Please help! I feel like I'm drowning :(
algol13

Answer:

1d = -3

2b = 2

2c = 1

3a = 3

3d = 4

Step-by-step explanation:

Polynomial 1: x^2-8x+15

Multiply the leading coefficient, 1, and the last term, 15. You get: 15.

Then, list out the factors of 15 and the addends of -8 until you get two of numbers that are the same:

Factors of 15: -5 * -3

Addends of -8: -5 + -3

Replace the -8x with -5x - 3x:

x^2-5x-3x+15

Put parentheses around the first 2 terms & last 2 terms and factor like so:

(x^2-5x)-(3x+15)

x(x-5)-3(x-5)

(x-5)(x-3)

Looking at the answer (ax + b)(cx + d), d would correspond with -3.

Polynomial 2: 2x^3-8x^2-24x

First factor out the x:

x(2x^{2}-8x-24)

Divide the polynomial inside by 2 and place the 2 outside with the x:

2x(x^2-4x-12)

Then find the factors of 1*-12 and the addends of -4 and see which two numbers match:

Factors of -12: -6 * 2

Addends of -4: -6 + 2

Replace the -8x with -6x + 2x:

2x(x^2-6x+2x-12)

Put parentheses around the first 2 terms & last 2 terms and factor like so:

2x((x^2-6x)+(2x-12))

2x(x(x-6)+2(x-6))

2x((x+2)(x-6))

2x(x+2)(x-6)

Looking at the answer (2x)(ax + b)(cx + d), b & c would correspond with 2 & 1.

Polynomial 3: 6x^2+14x+4

Divide the polynomial by 2:

(2)(3x^2+7x+2)

Find the factors of 3*2 and the addends of 7 and see which two numbers match:

Factors of 6: 6 * 1

Addends of 7: 6 + 1

Replace the 7x with 6x + x:

(2)(3x^2+6x+x+2)

Put parentheses around the first 2 terms & last 2 terms and factor like so:

(2)((3x^2+6x)+(x+2))

(2)(3x(x+2)+(x+2))

(2)((3x+1)(x+2))

(2)(3x+1)(x+2)

Then multiply the 2 with the (x+2) and here's your final answer:

(3x+1)(2x+4))

Looking at the answer (ax + b)(cx + d), a & d correspond with 3 & 4.

Hope that helps (●'◡'●)

(This took a while to write, sorry about that)

8 0
3 years ago
Which operation should you perform first when you simplify 175 - ( 8 + 45 divided by 3) times 7?
KatRina [158]

Answer:

Step-by-step explanation:

175-(8+45÷3)x7 s

start with what's inside the parenthesis

(8+45÷3)  ⇒ (8+15) ⇒(23)

175-(23)x7

then do multiplication

23x7

161

175-161

14

final answer is 14

7 0
3 years ago
Which linear equation has a slope of 3 and a y-intercept of -2?
natka813 [3]

Slope-intercept form:  y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

You know:

m = 3

b = -2        So substitute/plug it into the equation

y = mx + b

y = 3x + (-2)

y = 3x - 2      Your answer is the 2nd option

7 0
3 years ago
Read 2 more answers
What is 4y+3x-10y+7x
Rus_ich [418]
10x-6y
You have to add the like terms.
3 0
4 years ago
Read 2 more answers
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