Answer:
16
Step-by-step explanation:
A U.S. penny is considered to be 1/16th of an inch thick (1.5875 mm) so there are 16 per inch or 192 per foot (plus or minus).
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Answer:
Step-by-step explanation:
You need to bring the -5 to the left side.
x^2-6x+5=0
Wat two numbers, when multiplied equal to +5? Also when added make the middle term or -6? -5 and -1.
(x-1)(x-5) The x^2 would factor to be x*x
So the answer is the (x-1)(x-5)
<h2>
Answer with explanation:</h2>
As per given , we have
Sample size : n= 5
Degree pf freedom = : df= 5-1=4
Significance level for 90% confidence = 
Using t-value table , t-critical value for 90% confidence:
Margin of error of 
: 
Interpretation : The repair cost will be within $12.39 of the real population mean value 90% of the time.
True because they are the same shape but not necessarily the same size.
Answer:
8 • (b + 1) • (b - 1)
Step-by-step explanation:
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "b2" was replaced by "b^2".
Step by step solution :
Step 1 :
Equation at the end of step 1 :
23b2 - 8
Step 2 :
Step 3 :
Pulling out like terms :
3.1 Pull out like factors :
8b2 - 8 = 8 • (b2 - 1)
Trying to factor as a Difference of Squares :
3.2 Factoring: b2 - 1
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 1 is the square of 1
Check : b2 is the square of b1
Factorization is : (b + 1) • (b - 1)
Final result :
8 • (b + 1) • (b - 1)
