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2 years ago

X ⋅ x ⋅ x ⋅ x ⋅ x = ? 5x x(x + 5) x + 5 x5

Mathematics

2 answers:

vampirchik [111]2 years ago

6 0

Answer

x.x.x.x.x = 5x

Step-by-step explanation:

valina [46]2 years ago

6 0

Answer:

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this is a link for help

Step-by-step explanation:

Simplify

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Tap for fewer steps...

Apply the distributive property.

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⋅

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Multiply.

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Simplify

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Tap for fewer steps...

Apply the distributive property.

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Multiply

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Move all terms containing

to the left side of the equation.

Tap for fewer steps...

Subtract

from both sides of the equation.

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Combine the opposite terms in

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Tap for fewer steps...

Subtract

from

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Subtract

from

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Since

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, the equation will always be true for any value of

All real numbers

The result can be shown in multiple forms.

All real numbers

Interval Notation:

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Order the following expressions by their values from least to greatest

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Answer:

Step-by-step explanation:

a = -1

b = 2

c = 3

a + (-c) = -1 + (-3) = -4

Both numbers have same sign(-Ve).So add and the result will have the -Ve sign.

c - (-b) = c + b = 3 + 2 = 5

b = 2

Least to greatest: a +(-c) , b , c-(-b)

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3 years ago

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3 years ago

Assume the hold time of callers to a cable company is normally distributed with a mean of 5.5 minutes and a standard deviation o

Ierofanga [76]

Answer:

The percent of callers are 37.21 who are on hold.

Step-by-step explanation:

Given:

A normally distributed data.

Mean of the data, $\mu$ = 5.5 mins

Standard deviation, $\sigma$ = 0.4 mins

We have to find the callers percentage who are on hold between 5.4 and 5.8 mins.

Lets find z-score on each raw score.

⇒ $z_1=\frac{x_1-\mu}{\sigma}$ ...raw score, $x_1$ = $5.4$

⇒ Plugging the values.

⇒ $z_1=\frac{5.4-5.5}{0.4}$

⇒ $z_1=-0.25$

For raw score 5.5 the z score is.

⇒ $z_2=\frac{5.8-5.5}{0.4}$

⇒ $z_2=0.75$

Now we have to look upon the values from Z score table and arrange them in probability terms then convert it into percentages.

We have to work with P(5.4<z<5.8).

⇒ $P(5.4$

⇒ $P(-0.25$

⇒ $P(z$

⇒ $z(1.5)=0.7734$ and $z(-0.25)=0.4013$ .<em>..from z -score table.</em>

⇒ $0.7734-0.4013$

⇒ $0.3721$

To find the percentage we have to multiply with 100.

⇒ $0.3721\times 100$

⇒ $37.21$ %

The percent of callers who are on hold between 5.4 minutes to 5.8 minutes is 37.21

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