plz help asap
If A = {2, 4, 6, 8, 10} and B = {1, 2, 3, 4, 5}, find A Intersects with B.

A.
{2, 4}

B.
{1, 2, 3, 4, 5, 6, 8, 10}

C.
{7, 9}

D.
{1, 3, 5}

Question

plz help asap 
If A = {2, 4, 6, 8, 10} and B = {1, 2, 3, 4, 5}, find A  Intersects with B.
 
 A.
{2, 4}
 
 B.
{1, 2, 3, 4, 5, 6, 8, 10}
 
 C.
{7, 9}
 
 D.
{1, 3, 5}

freckles · Answer

just identity the elements that are in BOTH A and B
(what do they have in common; what elements)

anonymous · Answer

i dont understand it though i thought it was a but got it wrong

freckles · Answer

you thought it was what?

anonymous · Answer

A

freckles · Answer

that is right 
both A and B have 2 and 4 in common

anonymous · Answer

OH

anonymous · Answer

i must have clicked on the wrong one

freckles · Answer

$$\cap \text{ is intersect } \ \cup \text{ is union }$$

freckles · Answer

you did see the first symbol right?

anonymous · Answer

oh

anonymous · Answer

can you help me some more

freckles · Answer

sure

anonymous · Answer

Select the pair of equations whose graphs are perpendicular.	
 
 A.
x + 6y = 8
y = 2x – 8
 
 B.
y = 2x – 7
x + 2y = 3
 
 C.
2y = –3x + 5
2x + 3y = 4
 
 D.
5x – 8y = 9
12x – 5y = 7

anonymous · Answer

idk how to find if there perpindiculer

anonymous · Answer

hello?

geerky42 · Answer

Lines are perpendicular if $m_1~m_2 = -1$

(product of slopes of these lines has to  be -1.)

geerky42 · Answer

Let's take a look at A. What is slope of first equation? Second equation?

anonymous · Answer

idk
i think 3