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3 years ago

PART A:

Mathematics

1 answer:

rusak2 [61]3 years ago

3 0

Answer:

Part B: r = 180/t

Step-by-step explanation:

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my uncle John has a farm.In his farm he has cows and chicken.he doesn't know how many cows and chicken he has .He dose know that

aliya0001 [1]

X+y=36
4x+2y=104
Then
X=16, y=20. 16 cows and 20 chicken.

Or
104 legs minus 2 times 36 heads and then divided by 2 is the number of cows. (From all legs minus all legs for chicken and 2 legs of each cow. The result is 2 legs per cow. So divided by 2 is the number of cows).
X=(104-2*36)/2=16
Y=36-16=20

6 0

3 years ago

Help anyone plz I'm not understanding this well

Nikolay [14]

I believe for the first part x would equal -2 and y would equal -1
hope this helps!

8 0

3 years ago

For a binomial probability distribution, it is unusual for the number of successes to be less than μ − 2.5σ or greater than μ +

kirill [66]

Answer:The correct option is a)

The upper limit of successes that would be deemed to be usual is 5, so more than 5 successes would be unusual.

Step-by-step explanation:

The mean of a binomial distribution

μ= np where n=10 and p= 0.2 q= 1-p, q= 1-0.2=0.8

μ= 10×0.2=2

σ=√npq

σ=√10×0.2×0.8=1.26

Is unusual for the number of success to be greater than μ + 2.5σ.

= 2+2.5(1.26)

=5 approximately.

So it is unusual for it to be greater than 0.5. The right option Is a)

7 0

3 years ago

Total freshman = 58. Number of freshman who prefer cheese toppings= 14. Determined the probability that a freshman prefer cheese

Yakvenalex [24]

Answer:

The probability that a freshman prefer cheese toppings is 0.241

Step-by-step explanation:

Probability of any event E = $\frac{\textrm{Number of favorable outcomes}}{\textrm{Total number of outcomes}}$

Here, let E : Event of choosing cheese toppings

So, the number of favorable outcomes = 14

Total number of outcomes = 58

So, $P(E) = \frac{\textrm{Number of students who like cheese toppings}}{\textrm{Total number of students}}$

or, P(E) = $\frac{14}{58} = 0.241379$

So,the probability that a freshman prefer cheese toppings is 0.241379

Rounding of 0.241379 to the <u>nearest thousandth</u>, we get

Here , in 0.241379 thousandth digit is 3, and 3 < 5,

so the value of P(E) = 0.241

4 0

3 years ago

Pls answer pls ok ok ok ok o ok

cestrela7 [59]

Answer: a

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers