3 years ago

How to find the line of reflection between two points?

1 answer:

3 0

Use the midpoint formula.
(x1+x2)/2 , (y1+y2)/2
Then you should be able to find the reflection line based on where the middle of the two points are.

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I’m new to this app and I need help with those two questions please help!!

larisa86 [58]

y=x²-10x-7

a>0 so we will be looking for minimum

x=-b/2a=10/2=5

y=25-50-7=-32

Answer: (5;32)

y=-4x²-8x+1

а<0 so we will be looking for maximum

х=-b/2a=8/-8=-1

у=4+8+1=13

Maximum point (-1;13)

6 0

3 years ago

Can someone answer this for me

Rainbow [258]

Answer:

1. -11 B

2. -5 R

3. -8 E

4. -12 A

5. -2 K

6. 7 T

7. -5 H

8. 5 R

9. 2 O

10. 8 U

11. -6 G

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It spells breakthrough

Step-by-step explanation:

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3 years ago

Sketch the curve with the given vector equation. Indicate with an arrow the direction in which t increases. r(t) = 4 cos(t)i + 4

slega [8]

Answer:

The equation to this question is " $x^2+y^2=16$ "

Step-by-step explanation:

Given value:

$\to r(t) = 4 \cos (t)i + 4 sin(t)j + k\\where \\\\\to x(t)= 4 \cos t\\\to y(t) = 4 \sin t\\\to z(t)=1\\$

$\to x^2+y^2= 16 \cos^2 t +16 \sin^2 t\\\\\to x^2+y^2= 16 (\cos^2 t +\sin^2 t)\\\\\therefore (\cos^2 t +\sin^2 t =1)\\\\\to x^2+y^2= 16 (1)\\\\\to x^2+y^2= 16\\\\\to z=1$

So, the curve $r(t) = 4 \cos (t)i + 4 sin(t)j + k$ is basically a circle, which is defined in the attachment file.

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3 years ago

Can anyone explain how this problem is done ?

Svetach [21]

Step-by-step explanation:

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De un saco de frutas que contiene 3 naranjas, 2 manzanas, y 3 plátanos, una muestra aleatoria de 2 piezas de se selecciona la fr

rodikova [14]

Answer:

speak english plz

Step-by-step explanation:

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3 years ago