Answer:
−72x2+18?
Step-by-step explanation:
The distance of plane from the origin is 357.14 miles
<u>Explanation:</u>
Given:
distance traveled southwards, y = 600 miles
Distance traveled east of south, z = 250 miles
Angle, θ = 35°
Distance of plane from the origin, x = ?
The figure is attached for reference:
tan θ = Perpendicular / base
tan θ = distance travelled east of south / x
tan 35° = 250 / x
we know,
tan 35° = 0.7
So,

Therefore, the distance of plane from the origin is 357.14 miles
Answer:
Buying gas for your car each month is a variable expense.
Step-by-step explanation:
As are car repairs and maintenance. Grocery shopping is also a variable expense. Your utility bills may also be variable expenses because they may change from month to month.
Answer:
Third option. 
Step-by-step explanation:
For this exercise you need to remember one of the properties for exponents.
There is a property called the "Negative property of exponents" which states the following:
Where 
As you can observe,
is the reciprocal of 
In this case you have the following expression given in the exercise:

Observe the expression. As you can notice, the base "n" has a negative exponent, which is -6.
Therefore, applying the Negative property of exponents explained at the beginning of this explanation, you can simplify the expression.
Then, the simplified form of
is the one shown below:

Answer:
3,-2.
Step-by-step explanation:
hope this helps. :-)