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3 years ago

What is more 2/3 or 1/2

Mathematics

2 answers:

azamat3 years ago

7 0

Answer:

2/3

Step-by-step explanation:

igomit [66]3 years ago

4 0

Answer:

2/3

Step-by-step explanation:

1) If you multiply to get equal denominators then 1/2 turns into 3/6 and 2/3 turns into 4/6.

2) Compare 3/6 and 4/6 and 4/6 is larger.

3) This means 2/3 is the larger fraction.

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PRACTICE ANOTHER Calculate the standard deviation σ of X for the probability distribution. (Round your answer to two decimal pla

nataly862011 [7]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The standard deviation is $\sigma = 1.17$

Step-by-step explanation:

From the question we are told that

The data is

x 1 2 3 4

P(X = x) 0.2 0.2 0.2 0.4

Generally the standard deviation is mathematically represented as

$\sigma = \sqrt{ \sum x^2 P(x) - (\sum x P(x))^2 }$

Here $x^2 = 1^2 \ \ 2^2 \ \ 3 ^2 \ \ 4^2$

=> $x^2 = 1 \ \ 4 \ \ 9\ 16 \$

$\sum x^2 * P(x) = (1 * 0.2) + (4 * 0.2 ) + (9 * 0.2 ) + (16 * 0.2 )$

$\sum x^2 * P(x) = 9.4$

$\sum x P(x) = (1 *0.2) + (2*0.2) + (3 * 0.2) + (4 * 0.2)$

$\sum x P(x) = 2.8$

$\sigma = \sqrt{ 9.2 - (2.8)^2 }$

$\sigma = 1.17$

6 0

3 years ago

Y = x^2 - 4x + 4 Find the discriminant. Determine the number of real solutions.

weqwewe [10]

Answer:

The discriminant is 0

There is 1 real solution

Step-by-step explanation:

Use the discriminant formula, D = b² - 4ac

In the equation y = x² - 4x + 4, a is 1, b is -4, and c is 4.

Plug in these values into the formula:

D = b² - 4ac

D = (-4)² - 4(1)(4)

D = 16 - 4(4)

D = 16 - 16

D = 0

So, the discriminant is 0.

With a discriminant of zero, there is one real solution.

So, the number of real solutions is 1.

8 0

3 years ago

The density of water is: Question 3 options: 1g/ml 5g/ml 10g/ml 1000g/ml

TEA [102]

Answer:

1000g/ml is the approximate density of water.

Step-by-step explanation:

Hope it helps!

Answered by

$ROSALIND$

7 0

3 years ago

A truck can be rented from company A for $130 a day plus $0.20 per mile. Company B charges $50 a day plus $0.60 per mile to rent

grin007 [14]

Answer:

200 miles

Step-by-step explanation:

Company A

Daily charge = $130
Per mile = $0.20
x miles per day = 130 + 0.2x

Company B

Daily charge = $50
Per mile = $0.60
x miles per day = 50 + 0.6x

Assume x miles that makes same amount for both options, then:

130 + 0.2x = 50 + 0.6x
0.6x - 0.2x = 130 - 50
0.4x = 80
x = 80/0.4
x = 200 miles

3 0

3 years ago

A charity is planning to raffle off a new car donated by a local car dealer. The charity wants to raise at least 65,000. It expe

MariettaO [177]

Answer:

they can sell 2000 tickets each ticket is worth 29.15

Step-by-step explanation:

65,000 - 5000 - 1700 = 58300

6 0

4 years ago