A scientist uses a submarine to study ocean life.

Mathematics

1 answer:

klasskru [66]2 years ago

8 0

Answer:

$278.2 \: ft$

Step-by-step explanation:

Descended feet:

$94 \: s \times 3.3 \: \frac{ft}{s} \: = 310.2 \: ft$

Ascended feet:

$32 \: s \times 1 \: \frac{ft}{s} = 32 \: ft$

Total elevation:

$(310.2 - 32) \: ft = 278.2 \: ft$

You might be interested in

David cast a shadow 42" long at the same place and time in Emma cast a shadow 28" long. David is 66" tall. What is Emma's height

Nikolay [14]

ANSWER

Emma is 44" tall

EXPLANATION

We have that David cast a shadow 42 inches long and he is 66 inches tall.

At that same place and time, Emma cast a shadow of 28 inches.

Since they are at the same spot and time, we can conclude that the ratio of their height to shadow must be the same.

Let Emma's height be x.

The ratio of David's shadow to height is:

42 : 66 or 42 / 66

For Emma, it is:

28 : x or 28 / x

That means that:

$\begin{gathered} \frac{42}{66}\text{ = }\frac{28}{x} \\ \text{Solve for x by cross-multiplying:} \\ 42\cdot\text{ x = 66 }\cdot\text{ 28} \\ x\text{ = }\frac{66\cdot\text{ 28}}{42} \\ x\text{ = 44 inches} \end{gathered}$

So, Emma is 44" tall.

3 0

11 months ago

What is the interquartile range of 77 88 92 81 86 84 86 83 and how do you get it thx plz help

puteri [66]

To find the IQR you first need to write it in numerical order

77, 81, 83, 84, 86, 86, 88, 92

IQR is just Q3 - Q1

Q1 is the middle of the first have, since it has an even set of 4 numbers in the first half you need to take the average of the two middle ones.. which is 82

Q3 done the same process would be 87.

87 - 82 = 5

IQR = 5

6 0

3 years ago

SIMPLIFY the expression! Please!

Levart [38]

1+3^2 = 1+9 = 10

10/5 = 2

2-6+2 = -4+2

answer is -2

5 0

3 years ago

Read 2 more answers

You saved $300 to spend over the summer part c