1) you can expand the brackets, simplify, set the equation = 0 and then do a double bracket factorisation.
2)
therefore Josh's solution is wrong asx = 7 and x= -1
Answer:
Alabama: 1,700 sq miles
Florida: 12,000 sq miles
Hawaii: 4,500 sq miles
Michigan: 40,000 sq miles
Florida/Hawaii Difference: 7,500
Michigan/Alabama Difference: 38,300
Step-by-step explanation:
1.7 x 10^3 = 1,700
1.2x10^4=12,000
4.5x10^3=4,500
4.0x10^4=40,000
Answer:
8w=48
This answer can be simplified by dividing both sides which contain the variable, which in this case is 8. Dividing 48 by 8 gets 6. This means that w equals 6.
Answer:
The expression can be rewritten in form as following:
⇒
where
Step-by-step explanation:
Given expression:
To rewrite the expression in the form of .
Solution:
By property of exponents :
<em>So, we can apply this property to the given expression.</em>
We have:
⇒
The above expression is in the form of where
Answer:
C
Step-by-step explanation:
57+57+34=148