-21/5 is the closest!!!
Hope this helps.
If you want me to explain why, just ask! :)
Answer:
x = 4
Step-by-step explanation:
-3x + 2 = -10x + 30
Add 10x to both sides and you get
7x + 2 = 30
Subtract 2 from both sides and you get
7x = 28
Divide both sides by 7 to get x by itself and you get
x = 4
Reminder whatever you do to one side you have to do to the other side!
Hope this helps!
Answer:
is it 7.7 i am not sure
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
(2x + 3y)²
= (2x + 3y)(2x + 3y)
Each term in the second factor is multiplied by each term in the first factor
2x(2x + 3y) + 3y(2x + 3y) ← distribute parenthesis
= 4x² + 6xy + 6xy + 9y² ← collect like terms
= 4x² + 12xy + 9y² → a
₆C₃ is a combination. you can find this setting in the statistics menu of your scientific calculator (i think).
If you don't have a scientific calculator, you can use the following formula:
nCr = 
₆C₃ = 
= 
= 
= 
= 5 * 4
= 20
Answer: B
