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2 years ago

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Mathematics

1 answer:

nirvana33 [79]2 years ago

4 0

Answer:

Meh too much thx for point

Step-by-step explanation:

Meh too much thx for point

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1) What is the surface area? 1 ft 8 ft 4 ft

WITCHER [35]

Answer:

88 ft^2

Step-by-step explanation:

For a rectangular prism with dimensions 1 ft by 8 ft by 4 ft, there are two opposite faces with dimensions

1 ft by 8 ft,

two opposite faces with dimensions

1 ft by 4 ft,

and two opposite faces with dimensions

4 ft by 8 ft.

We find their area and add them.

SA = 2 * 1 ft * 8 ft + 2 * 1 ft * 4 ft + 2 * 4 ft * 8 ft

SA = 16 ft^2 + 8 ft^2 + 64 ft^2

SA = 88 ft^2

5 0

2 years ago

Let the probability of success on a Bernoulli trial be 0.26. a. In five Bernoulli trials, what is the probability that there wil

andreyandreev [35.5K]

Answer:

0.3898 = 38.98% probability that there will be 4 failures

Step-by-step explanation:

A sequence of Bernoulli trials forms the binomial probability distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

Let the probability of success on a Bernoulli trial be 0.26.

This means that $p = 0.26$

a. In five Bernoulli trials, what is the probability that there will be 4 failures?

Five trials means that $n = 5$

4 failures, so 1 success, and we have to find P(X = 1).

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 1) = C_{5,1}.(0.26)^{1}.(0.74)^{4} = 0.3898$

0.3898 = 38.98% probability that there will be 4 failures

4 0

2 years ago

X2 + 1/2x +__ = 2 + __

Brut [27]

Complete the Square:

$\frac{b}{2a}$ Plug your numbers in this function

$\frac{\frac{1}{2} }{2}$ You get this

That equals $\frac{1}{4}$

3 0

3 years ago

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Emily folded a paper circle into 2 equal parts. What is the angle measure of each part?

timama [110]

The diameter splits the circle into 2 equal halves by going through the midpoint of the circle. The two halves are called semicircles.

7 0

3 years ago

Answers?? IM STUCK!!

Sloan [31]

The answer is B. Maggie starts at her friends house and walks straight home

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3 years ago