Step-by-step explanation:
if pool is like cylinder
area =πr²h
if pool is cuboid
then area =2(lh+bh+lb)
Find out how many hours you worked first.
2:30 pm-8:45 => 6:15 hours
But they say that you take a break of 1/2 hour
6:15- 0:30= 5:45 hours
Convert all the data into hours. 5 hours + 45/60 hours
Multiply data with given hourly wage.
5x$7.50=$37.5
(45/60)x7.50=$5.625
In total, you earn (37.5+5.625)=> $43.125
Hope I helped :)
Ok so parallel equations mean they have equal slope, but different y intercepts. Here, we can solve and get the equation:
y=2/5x-7/5
Answer: b.14
Step-by-step explanation:
We have two shelves, the top shelf 
and the bottom shelf 
.
Now, firstly we are told the top shelf has 10 more than 1/3 the number of books on the bottom shelf. This can be expressed as:
(1)
Then, we are told there are 12 books on the bottom shelf:
(2)
Substituting (2) in (1):
(3)
(4)
(5) This is the number of books on the top shelf
Hence, the correct option is b.
Since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.
Therefore we reject John's claim.
Here:
we can use 1 sample proportion test to check the claim of John
H₀ : p₀ = 0.4
H₁ : p₀ ≠ 0.4
Test statistic is
z = p - p₀/√p₀(1-p₀)n
Let X be the random variable denoting the number of heads.
Now p = X/n
= 8/50
= 0.16
p₀ = 0.4
1-p₀ = 1-0.4
= 0.6
z = -3.464
since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.
Therefore we reject John's claim.
Learn more about Null hypothesis here:
brainly.com/question/15980493
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