Answer:
2.4
Step-by-step explanation:
similar triangles
Therefore
4/CD = 5/3
CD= 12/5
A ) = $ 0.18/oz = 4.68/26
b) = $0.19/oz = 2.66/14= 0.19
a is a better buy
9) for every 5 babies they need 1 babysitter, so for 40 babies they will need 8 babysitters.
Answer:
13 because all you need to do is multiply 10 by 3 then subtract 27
Step-by-step explanation:
H0: u = 44.3
Hi : u# 44.3
Z1-0.05/2
Z1-0.025
Z0.975 = 1.96
Z = x-u/s.d/√n
Z= 44.4 -44.3/2.6/√130
Z = (0.1×11.4018)/2.6
Z=0.44
Since the calcalculated value is less than the table value and does not fall in the rejection region we fail to reject the null hypothesis
X = 6 cos(t)
y = 3 sin(t)
we can rewrite these equations as:

Taking squares of both equations we get:

Adding both the equations, we get: