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3 years ago

1/8 x 1/8 as a exponet

Mathematics

1 answer:

USPshnik [31]3 years ago

6 0

Answer:

$\frac{1}{8}^{2}$

Step-by-step explanation:

A number doubled is the same as squaring it (to the second power).

Have a great day!

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What’s the volume of a cylinder with a radius of 15 ft and a height of 22 ft

Sophie [7]

Answer:

V = 15550.88 ft³ right cylinder

5 0

4 years ago

Read 2 more answers

A particular brand of dishwasher soap is sold in three sizes: 25 oz, 45 oz, and 60 oz. Twenty percent of all purchasers select a

Verdich [7]

Answer:

(a) <u>Sampling distribution </u>

P(25) = 0,04

P(35) = 0.1 + 0.1 = 0,2

P(42,5) = 0.06 + 0.06 = 0,12

P(45) = 0,25

P(52,5) = 0.15 + 0.15 = 0,3

P(60) = 0,09

(b) E(X) = 45.5 oz

Step-by-step explanation:

The variable we want to compute is

$X=(X1+X2)/2$

For this we need to know all the possible combinations of X1 and X2 and the probability associated with them.

(a) <u>Sampling distribution </u>

Calculating all the 9 combinations (3 repeated, so we end up with 6 unique combinations):

P(25) = P(X1=25) * P(X2=25) = p25*p25 = 0.2 * 0.2 = 0,04

P(35) = p25*p45+p45*p25 = 0.2*0.5 + 0.5*0.2 = 0.1 + 0.1 = 0,2

P(42,5) = p25*p60 + p60*p25 = 0.2*0.3 + 0.3*0.2 = 0.06 + 0.06 = 0,12

P(45) = p45*p45 = 0.5 * 0.5 = 0,25

P(52,5) = p45*p60 + p60*p45 = 0.5*0.3 + 0.3*0.5 = 0.15 + 0.15 = 0,3

P(60) = p60*p60 = 0.3*0.3 = 0,09

(b) Using the sample distribution, E(X) can be expressed as:

$E(X)=\sum_{i=1}^{6}P_{i}*X_{i}\\E(X)=0.04*25+0.2*35+0.12*42.5+0.3*52.5+0.09*60 = 45.5$

The value of E(X) is 45.5 oz.

$\mu=\sum_{i=1}^{3}P_{i}*X_{i}\\\mu=0.2*25+0.5*45+0.3*60=45.5$

We can conclude that E(X)=μ

We could have arrived to this conclusion by applying

$E(X)=E((X1+X2)/2)=E(X1)/2+E(X2)/2\\\\\mu = E(X1)=E(X2)\\\\E(X)=\mu /2+ \mu /2 = \mu$

4 0

4 years ago

Last week jackson babysits 1 1/2 times as many hours as he babysat this week . last week jackson babysat 12 hours .how many hour

Stells [14]

Multiply fraction (1 1/2) by the # of hours last week (12).

= 1 1/2 * 12
change to improper fraction
= 3/2 * 12
multiply numerators
= (3*12)/2
= 36/2
= 18 hours

ANSWER: D) 18 H

Hope this helps! :)

5 0

4 years ago

An employee at an electronics store makes $12 per hour, plus a commission of 4.5% of her sales.

Darya [45]

Answer:

The employee earned a total of $1004.40 dollars in commissions this week

Step-by-step explanation:

Times the number of televisions (36) by there cost ($620)

That will give you $22320

Then time $22320 by 0.045 which will give you $1004.40

Hope that helps

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2 years ago

PLEASE HELP WITH ALGEBRA WILL GIVE BRAINLIEST

Allushta [10]

Answer:

$\frac{ad}{bd} + \frac{cb}{bd}$

Step-by-step explanation:

$\frac{a}{b} + \frac{c}{d}$

$\frac{ad}{bd} + \frac{cb}{bd}$ Multiply by the LCD (bd)

3 0

2 years ago