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3 years ago

13

Las propiedades con los números reales

1 answer:

AlekseyPX3 years ago

7 0

La propiedad (a, byc son números reales, variables o expresiones algebraicas)1. Propiedad de distribución a • (b + c) = a • b + a • c2. Propiedad conmutativa de la adición a + b = b + a3. Propiedad conmutativa de la multiplicación a • b = b • a4. Propiedad asociativa de la adición a + (b + c) = (a + b) + c

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Find the z score that has 70.54% of the distribution area to its right

Alik [6]

The z score that has 70.54% of the distribution area is 9.92

<h3>What is a z-score?</h3>

The z-score is a numerical measurement used in statistics to refer to how much a given value differs from the standard deviation.

For the random variable x, the z-score is;

z = (x - 11)/2

therefore, 70.54% of the area under the curve lies to the right of x,

then the area to the left of x is;

100 - 70.54 = 29.46%

From the standard table, a z-score of -0.54 will yield an area of 29.46% to the left of x.

Therefore, we get;

(x - 11)/2 = -0.54

x - 11 = -0.54(2)

x = 9.92

The z score is 9.92

Learn more about z score here;

brainly.com/question/4167122

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7 0

1 year ago

92.3-(3.2 divided by 0.4) times 8

sp2606 [1]

Answer:

28.3 that's the answer

Step-by-step explanation:

3 0

3 years ago

You are purchasing books summer reading for $4.50 each. Part A: Your total cost, C, depends on,The input is,and the output is,Pa

Crazy boy [7]

Answer:

Part A) see the explanation

Part B) $C(12)=\$54$

Step-by-step explanation:

Part A)

we know that

A relationship between two variables, x, and C, represent a proportional variation if it can be expressed in the form $k=\frac{C}{x}$ or $C=kx$

Let

C ---> is the total cost (represent the output or dependent variable)

x ----> is the number of books (represent the input or independent variable)

In this problem

we have a proportional relationship between the variables x and C

Part B) we know that

The linear equation is given by

$C=kx$

The constant of proportionality k is the same that the slope or unit rate of the linear equation

In this problem the constant k is given

$k=\$4.50\ per\ book$

so

$C=4.50x$

For x=12 books

substitute in the equation and solve for C

$C=4.50(12)=\$54$

In function notation

$C(12)=\$54$

5 0

3 years ago

Polynomial division<br>(4x^2 +7x +6) ÷(x+ 2)

jolli1 [7]

Answer:

4x2 + 7x - 6

————————————

x - 2

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

At Rose State College Allison Wells received the following grades her accounting class 93, 60, 78, 89 ,78 and 82 Allison's instr

Lunna [17]

so you drop the 60.
$93 + 78 + 89 + 78 + 82 = 420$
$420 \div 5 = 84$

so the answer is 84

7 0

3 years ago