4x^2 + 8x + 9
I just counted them
hope this helps
Answer:
sure
Step-by-step explanation:
? must be equal 0 <span>in order for this polynomial to be expressed as a difference of squares
x^2 - 36
= x^2 - 6^2
=</span><span>(x + 6)(x - 6)</span>
Answer:
12 teeth
Step-by-step explanation:
<em>The attachment of this question is missing; however, the question can be solved without the attachment</em>
Given:
Larger Gear = 6
Smaller Gear = 1
Required
Number of Smaller Gear if there are 72 larger gears
When the number of larger gear is 6, smaller gears is 1;
<em>This can be represented using the following ratio;</em>
Let x represent the number of smaller gear, when there are 72 larger gears;
<em>This can also be represented using the following ratio;</em>
Equate both ratios
Convert the ratios to fraction
Multiply both sides by x
Divide both sides by 6.
<em>This implies that there are 12 teeth on the smaller gear</em>