Answer:350
Step-by-step explanation:
unknown is a
a% of 68=238
a/100 x 68=238
68a/100=238
Cross multiplying we get
68a=100x238
68a=23800
Divide both sides by 68
68a/68=23800/68
a=350
The answer is twelve fifths
Answer:
f(1) = 4
Step-by-step explanation:
f(x) = - 2x^2 + 2x + 4
f(1) = - 2(1)^2 + 2(1) + 4
f(1) = -2 + 2 + 4
f(1) = 4
Answer:
64
Step-by-step explanation:
Surface area=2(wl+hl+hw)
w=4, h=4, l=2
2(4(2)+4(2)+(4)(4))
2(8+8+16)
2(16+16)
2(32)
64
Answer:
The length of minor arc AB is 
π ft
Step-by-step explanation:
The formula of the length of an arc in a circle is L = 
× 2πr, where α is the central angle subtended by the arc, and r is the radius of the circle
∵ The radius of the circle is 4 ft
∴ r = 4
∵ ∠AOB is a central angle subtended by minor arc AB
∵ m∠AOB = 50°
∴ α = 50°
Substitute the values of r and α in the rule above
∵ L = 
× 2π(4)
∴ L = π
∴ The length of minor arc AB is π ft
