Volume of a triangle is 1/2 base x height x length.
Using the given information we can find t:
247.5 = 1/2(5)(t)(11)
Simplify:
247.5 = 2.5(t)(11)
247.5 = 27.5t
Divide both sides by 27.5:
t = 247.5 / 27.5
t = 9
Answer: you are correct
Step-by-step explanation:
Answer:
A) probability that at least x of them will require repairs is less than 0.5 is 4
Step-by-step explanation:
sample size, n = 20
p = success probability of toaster = 0.2
q = failure probability of toaster =1- p = 1- 0.2 =0.8
mean, , μ = n * p = 20 * 0.2 = 4
standard deviation, 
a) the probability that at least some of them require repairs < 0.5.
for
value of z = 0
we know 
from z table
X = 4
B) SECOND PART IS INCOMPLETE { DATA IS INCOMPLETE}
Distance between home and school(on map)=5cm
every 4cm=8km
therefore distance between home and school=
5/4×8 = 1.25×8 = 10km