Answer:
The equations are:
Step-by-step explanation:
The ideal length of the bolt is 2.0 cm, since it has a tolerance of 4%, this means that length values between 
and 
are acceptable, because by those expressions the length of the bolt will be 4% higher or lower than it's original length. With this in mind let's find it's values:
1. simplify -7x-3x+2 to -10x+2
-10x+2=-8x-8
2. add 10x to both sides
2=-8x-8+10x
3. simplify -8x-8+10x to 2x-8
2=2x-8
4. add 8 to both sides
2+8=2x
5. simplify 2+8 to 10
10=2x
6. divide both sides by 2
10/2=x
7. simplify 10/2 to 5
5=x
8. switch sides
x=5
1. simplify x-4x to -3x
-8-x=-3x
2. add x to both sides
-8=-3x+x
3. simplify -3x+x to -2x
-8=-2x
4. divide both sides by -2
-8/-2=x
5. two negatives make a positive
8/2=x
6. simplify 8/2 to 4
4=x
7. switch sides
x=4
hope this helps
Hello from MrBillDoesMath!
Answer:
The second choice
Discussion:
The first choice is not a polynomial because it contains sqrt(x)
The third choice is not a polynomial because it contains (1/x)
The fourth choice is not a polynomial because it contains x in the exponent (ie. 5^x)
Thank you,
MrB
Answer:
301 is correct answer. Please Mark it as brainlist answer.
