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4 years ago

PLEASE HELP ME PLSSSSSSSSZZ

Mathematics

1 answer:

adoni [48]4 years ago

5 0

Answer:

The answer is 5.

Step-by-step explanation:

Use order of operations. Parentheses come first, so I will compute what is in parentheses first. 11-3 is 8. Then, division comes next. I will divide 8 by 2 to get 4. Lastly, add 1 to get 5.

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Annual Pay: $61,000 Monthly: Semi-Monthly: Bi-Weekly: Weekly:

ANTONII [103]

Answer:

Monthly: 5,083

Bi-weekly: 2,346

Weekly:1,173

Daily: 235

6 0

4 years ago

Equivalnt Expressions with Exponents

Eddi Din [679]

Answer:

Um i cant see the picture

Step-by-step explanation:

4 0

3 years ago

during a particular period a university's information technology office received 20 service orders for problems with printers, o

stira [4]

Answer:

0.2384 = 23.84% probability that 3 were laser printers.

Step-by-step explanation:

The printers will be chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

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

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

In this question:

20 orders means that $N = 8$

8 were laser printers, which means that $k = 8$

Sample of 5 means that $n = 5$

What is the probability that 3 were laser printers?

This is P(X = 3).

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 3) = h(3,20,5,8) = \frac{C_{8,3}*C_{12,2}}{C_{20,5}} = 0.2384$

0.2384 = 23.84% probability that 3 were laser printers.

4 0

3 years ago

Find the surface area of the cube

andre [41]

Answer:

150

Step-by-step explanation:

Knowing that a cube has 6 faces which all are equal.

Thus, Multiply the area of one face by the number of faces to get the total surface area of the cube.

Since, it given that one face is 5 cm

Then, we also must know the formula for area of a cube

Which is:

$Area=6a^2$

Thus,

$Area=6a^2$

$Area=6(5)^2$

$Area=6(25)$

$Area=150$

Kavinsky

4 0

2 years ago

Please give the answer fast . I will mark you as brainliest.

DochEvi [55]

Answer:

1. 5 x3 x1

2. 5

Step-by-step explanation:

8 0

4 years ago