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muminat
3 years ago
6

Valor de x de (5x-20) 85

Mathematics
1 answer:
aleksandrvk [35]3 years ago
4 0
Answer/valor de x is x=21
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valentina_108 [34]

Answer: 1/7

Step-by-step explanation:

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Please help and explain. I am very confused and frustrated.
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2/10

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Ronald spins a spinner that has 10 sections numbered from 1 to 10. What is the probability that the spinner lands on a prime num
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Prime number is a whole number that has no possible divisors that 1 and itself. Prime numbers are 2, 3, 5.7.11,13,17,19,23 and 29. From 1 to 10 there are 3 prime numbers: 3,5 and 7. 
The probability can be calculated as the ratio between the number of "good" events and the total number of possible events. There are three "good" events (3,5 or 7) and 10 total events, so the probability that the spinner lands on a prime number is: 3/10. So, none of the given options is true.
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A manufacturer makes two type if products X and z at each if two different locations A and B. the materials used to make each if
Snezhnost [94]

Using matrix algebra, the material cost of making one of each product at each location is as follows:​

<h3 />

                       Product X    Product Z

Location A        birr 38          birr 50

Location B        birr 38          birr 49.5

<h3>What is matrix algebra?</h3>

Matrix algebra involves the arrangement of numbers in a rectangular array.

Matrices are arranged in columns and rows to express some mathematical values.

<h3>Data and Calculations:</h3><h3>Matrix O: Materials Requirement Per Unit</h3>

                      Steel    Glass    Plastic

Product X         3            1             2

Product Z         4          0.5           3

<h3>Matrix P: Materials Cost Per Unit</h3>

                      Steel    Glass    Plastic

Location A      10           2           3

Location B       9           3           4

<h3>Matrix R: (O x P) Material Cost of Product X</h3>

                      Steel    Glass    Plastic   Total

Location A     30           2           6          38

Location B     27           3           8          38

<h3>Matrix R: (O x P) Material Cost of Product Z</h3>

                      Steel    Glass    Plastic   Total

Location A     40          1             9          50

Location B     36          1.5         12         49.5

Thus, Product X costs birr 38 at locations A and B, respectively, while Product Z costs birr 50 and birr 49.5 at locations A and B, respectively.

Learn more about Matrix Algebra at brainly.com/question/94574

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3 0
2 years ago
Which function has a domain of all real numbers except x=npi, where n is any integers
Liono4ka [1.6K]
The domain of the function given are:
y=cot x
{x∈R: πn<x<π(n+1)} where n any integer

y=csc x
{x∈R: πn<x<π(n+1)}  where n any integer

y=cos x 

R (all real numbers)


y=sec x

{x∈R:π(n+1/2)<x<π(n+3/2)} where n is all integers.

from above we see that the the function that has a domain of all real numbers except npi is y=cot x and y=csc x

8 0
3 years ago
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