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Fudgin [204]
3 years ago
7

Simplify. 5/√10 A. √5 B. √10/2 C. √2/2 D. √2

Mathematics
1 answer:
worty [1.4K]3 years ago
8 0

Answer:

√10/2

Step-by-step explanation:

5/√10

Rationalizing the surd involves multiplying the numerator and denominator by the surd.

5/√10 * √10/√10

5√10/10

√10/2

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julia-pushkina [17]

Answer: 1. A

2.C

3.D

4.C

5.D

Step-by-step explanation:

8 0
3 years ago
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A fifth-degree polynomial equation with rational coefficients has the roots 3, 8i, and 7- radical 5. Which are also roots of the
Sliva [168]

Using <u>complex numbers and radicals</u>, it is found that the correct option is C.

When a complex number is a root of a polynomial function, it's conjugate also has to be.

  • Hence, since 8i is a root of the function, -8i is also a root.

The same is valid for radicals, as they are in the \pm format.

  • Since 7 - \sqrt{5} is a root, 7 + \sqrt{5} is also a root.

Hence, option C is correct.

For more on <u>complex numbers and radicals</u>, you can check brainly.com/question/25173944

8 0
2 years ago
If m = 22 and n = 3, what is the value of the following expression? m - 5 • n + 3 A. 51 B. 10 C. 4 D. 54
melisa1 [442]

The answer is B, 10.


Step-by-step explanation: You plug in the values where the variables are, then follow PEMDAS, beginning with 5 times 3.


4 0
3 years ago
Recognize functions from graphs, yes or no
never [62]

Answer:

If your asking whether the graph shown is a function or not the answer is yes it is a function.

Step-by-step explanation:

There is a test called the vertical line test that states if you can draw a vertical line anywhere on the graph and it only passes through one point then the graph represents a function.

3 0
3 years ago
The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code read
maw [93]
<span>In order to determine the total number of errors that were made by the bar code scanner, we first have to calculate how many total scans were made. Because there were six items scanned 1,000 times each, there were 6,000 total scans made. Next, we have to add up the total number of errors made by each item (36+14+21+39+11+2). As a result, there were a total of 123 errors made during the 6,000 scans.</span>
8 0
3 years ago
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