If x+y = 12 and x−y = 8, what is the value of x2+y2? (A) 20 (B) 24 (C) 100 (D) 104 (E) 208

Answers

Answer 1
Answer:

Answer:

24

Step-by-step explanation:

x-y=8

x=8+y

(8+y) +y =12

2y=4

y=2

x+2=12

x=10  

                                y=2

                                 x=10

  10+2= 12  

  10-2 =8

                                 10*2=20                    2*2=4

                        20+4=24

                       

Answer 2
Answer:

Answer:

its 104

Step-by-step explanation:


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Use mental mAth to solve 122+306

Answers

   122
+ 306
-------------
   428
Mental math is using your brain so you would separate the problem into pieces to make it easier, for example first you would do 100 + 300 = 400 them add (22+6) which is 28 so 400 plus 28 is 428

Which function is nonlinear?
A. y=3x+1/2
B. y= -x
C. y=2x(x-4)
D. y=1/2x-7

Answers

c is non linear because if expanded It forms a parabola
C is the nonlinear response

If X is the set of negative numbers and Y is the setof positive numbers, then the union of X and Y and
0 is the set of
(A) all real numbers
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Answers

A............................

When a line of symmetry divides an image, every point on one side of the line has a corresponding point on the other side. True or False?

Answers

When a line of symmetry divides an image, every point on one side of the line has a corresponding point on the other side is true.

To find true/false When a line of symmetry divides an image, every point on one side of the line has a corresponding point on the other side.

What is meant by line of symmetry?

A line of symmetry is a line that cuts a shape exactly in half.

A line of symmetry divides a design so that every point on one side of the line coincides with a point on the other side of it.  There are figures and shapes that can have more than one lines of symmetry. A circle has infinite lines of symmetry. Likewise, a triangle has three lines of symmetry, while rectangle and square have four such lines which divide them into identical parts.

so, a line of symmetry divides an image, every point on one side of the line has a corresponding point on the other side is true.

Learn more about the  line of symmetry here:

brainly.com/question/12413540

#SPJ5

The answer would be:

True.

Help me out with these last two problems

Answers

A)
x = number of days 
34 = 6x 

B) 
1000 = 6x 
1000/6 = 6x / 6
x = 166.7 days



10*(80+5)6-1Wow im so confused because there is no + / * or - next to the 6 please help 15 points

Answers

Parenthesis
Exponent
Multiply
Divide
Add
Subtract
First Parenthesis
So we have 80+5=85.
Now let's rewrite the problem. 10*85*6-1. 
I put the * sign because when you have a number like this: (10+5)1 It means you will subtract it by the number outside of the parenthesis. Now we need to move onto multiplication because there are no exponents so we skip that. 
Lets multiply from left to right.
So we have 10*85*6-1 so lets start with 10*85=850
Now we have
850*6-1 So let's do 850*6=5100
Now 5100-1=5099
So your answer is 5099