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4 years ago

A sea lion dove from the water's surface at sea level to an altitude of −216.12 meters in 2.4 minutes.

Mathematics

2 answers:

dlinn [17]4 years ago

7 0

divide total distance by time

-216.12 / 2.4 = -90.05 meters per second

Valentin [98]4 years ago

4 0

Hello,

The answer to this problem is -90.05.

Hope this helps

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During April it was recorded that there were 19 days when it rained, mostly cloudy on 6 days and sunny on 5 days inference in th

Anika [276]

Answer:

I would defend this

Step-by-step explanation:

This makes sense because April is the rainiest month of the year. It's even shown in the say that April showers bring May flowers.

5 0

2 years ago

One desk requires 84 inches of a type of trim. Find the lenght of trim needed in inches of 5 desks. Then convert yours answer to

Crazy boy [7]

420 inches and 35 feet

length of trim required = 84 × 5 = 420 inches

using 12 inches = 1 foot then

$\frac{420}{12}$ = 35 feet

6 0

3 years ago

A manager wishes to determine the relationship between the number of miles (in hundreds of miles) the manager's sales representa

Aleksandr [31]

Answer:

$y=3.529 x +37.91$

We can predict the sales representative travelled 8 miles replacing x =8 and we got:

$y(8) = 3.529*8 + 37.91= 66.142$

And we can predict the sales representative travelled 11 miles replacing x =11 and we got:

$y(11) = 3.529*11 + 37.91= 76.729$

Step-by-step explanation:

For this case we have the following data:

Miles Traveled x: 2,3,10,7,8,15,3,1,11

Sales y :31,33,78,62,65,61,48,55,120

For this case we need to calculate the slope with the following formula:

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

So we can find the sums like this:

$\sum_{i=1}^n x_i =60$

$\sum_{i=1}^n y_i =553$

$\sum_{i=1}^n x^2_i =582$

$\sum_{i=1}^n y^2_i =39653$

$\sum_{i=1}^n x_i y_i =4329$

With these we can find the sums:

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=582-\frac{60^2}{9}=182$

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=4329-\frac{60*553}{9}=642.33$

And the slope would be:

$m=\frac{642.33}{182}=3.529$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{60}{9}=6.67$

$\bar y= \frac{\sum y_i}{n}=\frac{553}{9}=61.44$

And we can find the intercept using this:

$b=\bar y -m \bar x=61.44-(3.529*6.67)=37.91$

So the line would be given by:

$y=3.529 x +37.91$

We can predict the sales representative travelled 8 miles replacing x =8 and we got:

$y(8) = 3.529*8 + 37.91= 66.142$

And we can predict the sales representative travelled 11 miles replacing x =11 and we got:

$y(11) = 3.529*11 + 37.91= 76.729$

4 0

4 years ago

2x + 2x2 + 2x3 + ... + 2x<br> O arithmetic<br> O geometric<br> O both<br> O neither

Mkey [24]

Answer:

16 ALB

Step-by-step explanation:

ayudame wey andale

6 0

3 years ago

Express p/q form of 0.375

expeople1 [14]

Answer:

15/40

Step-by-step explanation:

$0.375 = \frac{375}{1000} \\ \\ = \frac{15}{40}$

5 0

3 years ago