The cross section is just a rectangle. So to work out the area, multiply the length of the base together by the height.
This is 22 x 12 = 264cm²
X²+35=0
X(x+35)=0
X=0 x+35=0
-35 -35
X=-35
x=0, x=-35
The answer to the first question is 30.
Answer:
Step-by-step explanation: use Triangle formula Area= 1/2xbxh
1/2x6x6=18
18 sq inches for one triangle then multiply by 24 for the whole quilt
You got this
Answer:
The mean number of adults who would have bank savings accounts is 32.
Step-by-step explanation:
For each adult surveyed, there are only two possible outcomes. Either they have bank savings accounts, or they do not. So we use the binomial probability distribution to solve this problem.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:

In this problem, we have that:

If we were to survey 50 randomly selected adults, find the mean number of adults who would have bank savings accounts.
This is E(X) when
.
So

The mean number of adults who would have bank savings accounts is 32.