Answer:
β = arccos((a^2 + c^2 - b^2)/(2·a·c))
β = arccos((3^2 + 7^2 - 5^2)/(2·3·7)) = 38.21°
Answer: $5
Step-by-step explanation:
Let the small candy be represented by x.
The medium candy was twice as expensive as the small candy. This will be: = 2×x = 2x
The large candy was $5 more than the medium candy. This will be: = 2x + 5
Since Jason spent a total of $30 on
candy, the cost of the small candy will be:
x + 2x + 2x + 5 = 30
5x + 5 = 30
5x = 30 - 5
5x = 25
x = 25/5
x= 5
The small candy cost $5
Answer:
The height of the cone is 10.9 cm
Step-by-step explanation:
step 1
Find the height of the cone
Applying the Pythagoras Theorem
therefore
The height of the cone is 10.9 cm
Answer:
Sam
Step-by-step explanation:
Sam: Longest ski trail >3x x = shortest ski trail
Eli: Longest ski train< 3x
Sam is correct because the longest ski trail has to be greater than the shortest and it can't be less than.
