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3 years ago

PLEASE HELP!

Mathematics

2 answers:

sammy [17]3 years ago

7 0

Answer:

the tally Marks are ended

Step-by-step explanation:

intercept and zeros of

DanielleElmas [232]3 years ago

7 0

Answer:

<u>y intercept:</u> (0, -36)

<u>zeros:</u> 2 √ 3 , − 2 √ 3 , i √ 3 , − i √ 3

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Which of the following numbers would be an outlier if added to the data below? 372, 351, 299, 406, 387, 315, 364,308

ira [324]

Answer:

299 will be the outlier

Step-by-step explanation:

If u were to add em all plus the outlier, it will be 2802, then divide it by 8 to get 350.25. I we did it without the outlier it will be 2503 then divide by 7 is 357.57. S therefore 299 is the outlier.

Your welcome.

6 0

4 years ago

Read 2 more answers

What is √45 in simplest radical form?

lapo4ka [179]

Answer:

=3√5

Step-by-step explanation:

Simplifying this expression involves prime factorisation of

45 = 3⋅3⋅5

(3 and 5 are the prime factors of 45)

So √45

=√3⋅3⋅5

=√32⋅5

=3⋅√5

=3√5

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4 years ago

the book is 300 pages david can read 1.8 pages per minute he only ha sone hour per day to read hom many days will it take him to

irina1246 [14]

Answer:

1 day

Step-by-step explanation:

i don't know hot to explain it, but technically i multiplied 1.8 time 60 (because there is 60 minutes in an hour, which will equal 108. now i multiplied 108 times 24 to see how many pages he can read in a day and it gave me 2592 and he only has to read 300 pages. So technically he can read 8 or more books of 300 pages in a day.

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3 years ago

A tax assessor wants to assess the mean property tax bill for all homeowners in a certain state. From a survey ten years ago, a

Jet001 [13]

Answer:

The answer is below

Step-by-step explanation:

From the table, the mean (μ) = 1390.75 and the standard deviation (σ) = 518.75

The confidence level (C) = 90% = 0.9

α = 1 - C = 1 - 0.9 = 0.1

α/2 = 0.1 / 2 = 0.05

The z score of α/2 (0.05) is the same as the z score of 0.45 (0.5 - 0.05) which is equal to 1.645.

The margin of error (E) is given as:

$E=Z_\frac{\alpha}{2}*\frac{\sigma}{\sqrt{n} } \\\\E=1.645*\frac{518.75}{\sqrt{14} } =228.07$

The confidence interval = μ ± E = 1390.75 ± 228.07 = (1162.68, 1618.82)

The confidence interval is between 1162.68 and 1618.82.

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3 years ago

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th

olchik [2.2K]

Answer:

14.52 seconds.

Step-by-step explanation:

We have been given that the height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation $y=-16x^2+224x+121$ . We are asked to find the time, when the rocket will hit the ground.

We know that the rocket will hit the ground, when height will be 0. So to find the time when rocket will hit the ground, we will substitute $y=0$ in our given equation as: