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7nadin3 [17]
3 years ago
10

Select the correct answer from each drop-down menu

Mathematics
1 answer:
Papessa [141]3 years ago
5 0
First one: Exact Form:
- 2 √2-√3-√6-√2/4
Decimal Form:
0.70710678...
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FACTOR the following quadratic expression: x^2-3x-18. Clearly show your steps OR explain your reasoning and CHECK your answer by
kakasveta [241]

Answer:

The factors of x² - 3·x - 18, are;

(x - 6), (x + 3)

Step-by-step explanation:

The given quadratic expression is presented as follows;

x² - 3·x - 18

To factorize the given expression, we look for two numbers, which are the constant terms in the factors, such that the sum of the numbers is -3, while the product of the numbers is -18

By examination, we have the numbers -6, and 3, which gives;

-6 + 3 = -3

-6 × 3 = -18

Therefore, we can write;

x² - 3·x - 18 = (x - 6) × (x + 3)

Which gives;

(x - 6) × (x + 3) = x² + 3·x - 6·x - 18 = x² - 3·x - 18

Therefore, the factors of the expression, x² - 3·x - 18, are (x - 6) and (x + 3)

6 0
3 years ago
a researcher is interested in whether or not a significant trend exists regarding the popularity of certain music played at rest
IrinaK [193]

No the results did not deviate significantly from what would be expected due to chance.

<h3>What is standard deviation?</h3>

The standard deviation is a statistic that expresses how much variance or dispersion there is in a group of numbers. While a high standard deviation suggests that the values are dispersed throughout a larger range, a low standard deviation suggests that the values tend to be near to the established mean. The term "standard deviation" (or "") refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.

To know more about standard deviation,

brainly.com/question/14747159

#SPJ4

6 0
1 year ago
A carton can hold 1,000 unit cubes that measure 1 inch by inch.describe the dimensions of the carton using unit cubes
Romashka-Z-Leto [24]
You've told us the volume of the carton. 
That doesn't tell us the dimensions.

If the unit cubes have to exactly fit the dimensions,
then all we know is that the dimensions are integers,
and their product is 1,000.

The carton could be

1 by 1 by 1,000
1 by 2 by 500
1 by 4 by 250
1 by 5 by 200
1 by 8 by 125
1 by 10 by 100
1 by 20 by 50
1 by 25 by 40

2 by 2 by 250
2 by 5 by 100
2 by 10 by 50
.
.
and several other possible sets.
6 0
3 years ago
A.4 B.5 C.6 D.8<br> HELP PLEASE
soldier1979 [14.2K]

Answer:

  • A) The radius is 4 m

Step-by-step explanation:

Volume of cylinder formula:

  • V = πr²h

<h3>Given</h3>

  • V = 64π,
  • h = 4 m

Find r by substituting given values:

  • 64π = πr²*4
  • 64π = 4r²π
  • 16 = r²
  • r = √16
  • r = 4 m

Correct choice is A.

8 0
1 year ago
Read 2 more answers
imeter, Area, Dimensions - Real World Hacice estions Notes/Examples 1. A triangular garden has sides measuring 14 feet, 17 feet,
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2 years ago
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