Answer: OPTION C (119π cm²)
Step-by-step explanation:
Yon can use the following formula for calculate the surface area of a cone:
Where r is the radius and l is the slant height.
Based on the figure shown attached, you have that:
Therefore, when you susbtitute these values into the formula shown above, you obtain that the surface area of the cone is:
cm²
Answer:
The angle measurement is 61.218°
Step-by-step explanation:
I used a triangle calculator
Answer:
Option A. 
Step-by-step explanation:
we have
Applying the distributive property
Answer:
First,
the age of the son: s
the age of the father is 2 less than 7 times the age of his son: 7s - 2
In 3 years, the sum of their ages will be 52, In 3 years, the age of the sun will
increase 3, so s+3. Also, the age of his
father also increase 3, (7s-2)+3
(s+3)+ [(7s-2)+3] = 52 is the equation.
<h3>
Answer: 43 km per hour</h3>
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Work Shown:
total distance = 43+40+46 = 129 km
total time = 1+1+1 = 3 hours
average speed = (total distance)/(total time)
average speed = (129 km)/(3 hrs)
average speed = (129/3) (km/hr)
average speed = 43 km per hour
