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1 year ago

5

Which costs less to buy, a $1000 computer that is discounted 20% and then offered at an additional 10% off, or a $1000 computer

that is discounted 30% off?

1 answer:

katen-ka-za [31]1 year ago

6 0

A computer discounted at 30% off is less expensive.

First: 1000*.8 = 800
800*.9 = $720

Second: 1000*.7 = $700

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Which of the statements below is true concerning bar graphs? Choose the correct answer below.

nordsb [41]

Answer:

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Step-by-step explanation:

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1 year ago

Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have an average life of

Gelneren [198K]

Answer:

a

$P(X < 24 )= 21.186\%$

b

$x = 19.78 \ months$

Step-by-step explanation:

From the question we are told that

The mean is $\mu = 26 \ months$

The standard deviation is $\sigma = 4 \ months$

Generally 2 year is equal to 24 months

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$P(X < 24 )= P(\frac{X - \mu }{ \sigma} < \frac{24 - 26}{4} )$

Generally $\frac{X - \mu}{\sigma } =Z (The \ standardized \ value \ of \ X )$

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Generally from the z-table

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So

$P(X < 24 )= 0.21186$

Converting to percentage

$P(X < 24 )= 0.21186 * 100$

=> $P(X < 24 )= 21.186\%$

Generally the duration that should be the guarantee period if Accrotime does not want to make refunds on more than 6% is mathematically evaluated as

$P(X < x) = P(\frac{X - \mu }{\sigma} < \frac{x - 26}{4} )= 0.06$

=> $P(X < x) = P(Z < \frac{x - 26}{4} )= 0.06$

From the normal distribution table the z-score for 0.06 at the lower tail is

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$\frac{x - 26}{4} = -1.555$

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1 year ago

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Answer:

Step-by-step explanation:

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1 year ago

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Answer:I can’t see the rest.

Step-by-step explanation:

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1 year ago

What is the surface area of the right cone below?

maksim [4K]

Answer:

$SA=54\pi\ units^2$

Step-by-step explanation:

we know that

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$SA=\pi r^{2}+\pi rl$

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2 years ago