They plan to order 2 cheese pizzas for every 3 pepperoni pizzas they order how many cheese pizzas will they order if they order
2 answers:
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Answer:
the number of black tokens in the bag is 2
Step-by-step explanation:
The computation of the number of black tokens in the bag is as followS
Given that
There is 8 green tokens
and, the ratio of green tokens to black tokens is 4:1
So let us assume the black tokens be x
So,
Now do the cross multiplication
x = 2 tokens
Hence, the number of black tokens in the bag is 2
Answer:
a) It can be used because np and n(1-p) are both greater than 5.
Step-by-step explanation:
Binomial distribution and approximation to the normal:
The binomial distribution has two parameters:
n, which is the number of trials.
p, which is the probability of a success on a single trial.
If np and n(1-p) are both greater than 5, the normal approximation to the binomial can appropriately be used.
In this question:
So, lets verify the conditions:
np = 201*0.45 = 90.45 > 5
n(1-p) = 201*(1-0.45) = 201*0.55 = 110.55 > 5
Since both np and n(1-p) are greater than 5, the approximation can be used.
(See attached graphic)
13^3 = 12^2 + radius^2
radius^2 = 13^2 - 12^2
radius^2 = 169 -144
radius^2 = 25
radius = 5
13^3 = 12^2 + radius^2
radius^2 = 13^2 - 12^2
radius^2 = 169 -144
radius^2 = 25
radius = 5