Answer:
False
Step-by-step explanation:
Using the rule of exponents
× 
⇔ 
, then
× 
= 
= 
Answer:
Let x and y be the two numbers. Then
yx=57 and x−y=20
Cross multiplying the proportion
5x=7y or y=75x
So, x−y=20
x−75x=20⇒77x−5x=72x=20
⇒x=2140=70
y=75x=75×70=50
So smaller number is 50.
Check :yx=5070=57 and 70−50=20
Answer:
in this case it is just multiplying the two items together
the THIRD CHOICE...
3x(x^2-5x-9)
3x^3 -15x^2 -27x
Step-by-step explanation:
Well turn 60 into a decimal 0.60 and then multiply by 25 which is 15
remember of in math means multiply
The answer would be (x-3y) (x-7y)
You have to group them together
