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3 years ago

How long* sorry! Happy December 1st!!!

Mathematics

2 answers:

Sphinxa [80]3 years ago

7 0

today is December 1

klio [65]3 years ago

5 0

Answer:

happy December first to you to, Christmas is just down the road

Step-by-step explanation:

hope it helps, have a great rest of your day, mark brainliest please

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Explain why the vertical line test is used to determine if a graph represents a function.

Yakvenalex [24]

A graph can't be a function if there is a vertical line.

3 0

3 years ago

The total cost of renting a popcorn machine for 6 hours is $48. What equation can be used to model the total cost y for renting

scoray [572]

Answer:

$y=8x$

Step-by-step explanation:

Let

y ----> the total cost for renting the popcorn machine

x ----> the time in hours

we know that

The total cost of renting a popcorn machine for 6 hours is $48

using proportion

Find out the total cost for renting the popcorn machine for x hours

$\frac{48}{6}=\frac{y}{x}\\\\y=(48x)/6\\\\y=8x$

Is a linear direct variation

The constant of proportionality or slope is equal to

$k=8\frac{\$}{h}$

That means ----> the total cost is $8 per hour

4 0

4 years ago

What is the quadratic regression equation?

aniked [119]

Answer:

y=-0.078x^2+8.407x+-92.892

Step-by-step explanation:

but your x and y in desmo than go under the table do y1=ax^2 then under the 2 put a 1 than +bx1+c than you round your a b and c to the nearest thousandth than after that add a b and c then after you get your answer than but x^2 behind a than x behind b then nothing behind c hope this works for you

7 0

3 years ago

The average daily volume of a computer stock in 2011 was μ=35.1 million shares, according to a reliable source. A stock analyst

alexandr1967 [171]

Answer:

The 95% confidence interval is ( 27.126 , 34.674)

Step-by-step explanation:

Given

The t critical value at 0.05 level = 2.023 for the df = 39

Confidence interval = 95%

Mean

$\bar{x} - t * \frac{s}{\sqrt{n} } < \mu < \bar{x} + t * \frac{s}{\sqrt{n} }$

Substituting the given values we get -

$\30.9 - 2.023 * \frac{11.8}{\sqrt{40} } < \mu < \30.9 + 2.023 * \frac{11.8}{\sqrt{40} }\\27.126 < \mu < 34.674$

Hence, the 95% confidence interval is

( 27.126 , 34.674)

4 0

3 years ago

What is the median and mode of 28,34,34,50,54

o-na [289]

Answer:

Both your median and mode are 34.

Step-by-step explanation:

The median is the middle of the set of numbers in order, and your mode is the number that appears the most.

Good luck :)

5 0

3 years ago