To get perimeter you add all the sides together. You have 2 sides of 10ft, one side of 8ft and then the half circle. To find the arc length of the half circle you would do 1/2(2πr) which would give you πr. R=4ft since the diameter is 8ft. So you would add 8,10,10 and 4pi. If it wants an exact answer it would be 28+4pi. If it wants an approximate answer it would be 40.6ft
Answer:
$392
Step-by-step explanation:
Given the expression :
Total cost = 20a + 13c
a = adult
c = student
The total cost for 4 adults and 24 students
a = 4 ; c = 24
Total cost :
20(4) + 13(24)
80 + 312
= $392
Answer:
x > -5
Step-by-step explanation:
1. x is the number of feet, y is the number of inches
2. substitute means to replace a variable with a number
3. y = 12 (5) = 60 inches.
x^2 + 10x + 4 = 0
you can use the quadratic formula to solve:
a = 1, b = 10, c = 4
x= −b ± √b^2 −4ac / 2a
x = -10 ± √(10)2 − 4(1)(4) / 2(1)
x = -10 ± √84 / 2
x = -0.42 or -9.58