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3 years ago

HELP I WILL MARK YOU BRAINLEST!!

Mathematics

1 answer:

pav-90 [236]3 years ago

7 0

Answer:

0.19706

Step-by-step explanation:

-Given the mean salary is $65,000 and the standard deviation is $6,000, the probability of making between $70000 and 80000 can be calculated as:

$P(70000$

Hence,the probability that an employee makes between $70,000 and $80,000 is 0.19706

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Ill give brainliest! Sorry its sideways.

padilas [110]

Answer:

b. -2 and 2

I'm not sure about answer...

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2 years ago

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A show is on Friday, Saturday and Sunday

Gwar [14]

Answer:

270 tickets are sold for the Sunday show.

Step-by-step explanation:

Given:

Two-fifth of the total tickets are sold for the Saturday show.

Tickets sold for the Saturday show = 240

Three times as many tickets are sold for the Sunday show as for the Friday show. This means that tickets sold for Sunday show is three times that for Friday.

Let the tickets sold for Friday show be 'x'. Therefore, tickets sold for the Sunday show is given as 3 times of 'x' = $3x$

Total tickets sold = Sum of all tickets sold on Friday, Saturday and Sunday.

Total tickets sold = $x+3x+240$

Total tickets sold = $4x+240$

Now, as per question, two-fifth of the total tickets are sold for Saturday show and ticket sold on Saturday is 240. So,

$\frac{2}{5}\times(4x+240)=240\\\\8x+480=240\times5\\\\8x=1200-480\\\\8x=720\\\\x=\frac{720}{8}=90$

Therefore, tickets sold for the Sunday show = $3x=3\times90=270$

Hence, 270 tickets are sold for the Sunday show.

6 0

2 years ago

What is the number 1,000 less than 28,648

Alexeev081 [22]

Answer:

27,648

Step-by-step explanation:

subtract 28,648 - 1,000

7 0

2 years ago

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The linearized regression equation for an exponential data set is log ŷ = 0.14x + 0.4, where x is the number of years and y is t

djyliett [7]

Option C: $316$ is the predicted population when $x=15$

Explanation:

The regression equation for an exponential data is $\log y=0.14x+0.4$

Where x is the number of years and

y is the population

We need to determine the predicted population when $x=15$

The population x can be determined by substituting $x=15$ in the equation $\log y=0.14x+0.4$

Thus, we have,

$\log y=0.14(15)+0.4$

$\log y=2.1+0.4$

$\log y=2.5$

Using the logarithmic definition $\log _{a}(b)=c$ then $b=a^{c}$

$\log _{10}(y)=2.5 \Rightarrow y=10^{2.5}$

$y=316.22776 \ldots$

Rounding off to the nearest whole number, we get,

$y=316$

Thus, the predicted population when $x=15$ is 316

Hence, Option C is the correct answer.

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3 years ago

PLEASE HELP ME MATH LOVERS!!!!!! WILL GIVE BRAINLIEST!!!!!!!!

Romashka [77]

One) One millivolt is one thousandths of a volt.

Two) One megagram is one million grams.

8 0

2 years ago

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