Answer:
0.000125x
Step-by-step explanation:
-8x^2 + 36xy - 36y^2
btw ^2 means squared
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>
After 7 days means the temperature has changed 7 times so
7 x (-1.2)
=-8.4°
so the temperature decrease 8.4 degree