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4 years ago

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Two minutes after a diver enters the water, he has descended 52 feet After 5 minutes, he has descended 130 feet At what rate is

the scuba diver descending

1 answer:

o-na [289]4 years ago

5 0

Answer:

26ft/minute

Step-by-step explanation:

The question asks to calculate the rate at with a scuba diver is descending.

Firstly, we should know that the rate at which the scuba diver is descending is calculated as the total amount of distance descended, divided by the total amount of time taken.

The total amount of distance descended is 52ft + 130ft = 182ft

The total amount of time taken is 5 + 2= 7 minutes

The rate of descending is thus 182ft/7min = 26ft/minute

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Katarina [22]

Answer:

6.6 i think

Step-by-step explanation:

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3 years ago

Plzzzzzz helppppp meeee !!!

Anon25 [30]

Answer:

Corresponding side of AB is FE

Corresponding side of CB is DE

Corresponding side of AC is FD

$k =2$

$DE = 6$

$FD=10$

Step-by-step explanation:

Given

$\triangle ABC$ and $\triangle FED$

See attachment for triangles

Solving (a): Corresponding side of AB

Going by the names of the triangle, the corresponding sides are:

AB and FE; CB and DE; AC and FD

Hence, the corresponding side of AB is FE

Solving (b): Corresponding side of CB

This has been solved in (a) above.

The corresponding side of CB is DE

Solving (c): Corresponding side of AC

This has been solved in (a) above.

The corresponding side of AC is FD

Solving (d): Scale factor from ABC to FED

To do this, we simply divide the lengths of corresponding sides.

The scale factor k is:

$k = \frac{FE}{AB}$

$k = \frac{8}{4}$

$k =2$

Solving (e): Length of DE

We make use of the scale factor calculated in (d) above

$k = \frac{DE}{CB}$

$2 = \frac{DE}{3}$

$DE = 2 * 3\\$

$DE = 6$

Solving (f): Length of FD

Using Pythagoras:

$FD^2 = DE^2 + EF^2$

$FD^2 = 6^2 + 8^2$

$FD^2 = 100$

$FD = \sqrt{100$

$FD=10$

7 0

3 years ago

Find the arc length of the partial circle..

Gala2k [10]

Answer:

The arc length of the partial circle is $6\pi\ units$

Step-by-step explanation:

we know that

The circumference of a circle is equal to

$C=2\pi r$

In this problem we have a 3/4 of a circle

so

the circumference is equal to

$C=(\frac{3}{4})2\pi r$

$C=\frac{3}{2}\pi r$

we have

$r=4\ units$

substitute

$C=\frac{3}{2}\pi (4)$

$C=6\pi\ units$

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4 years ago

A number, X, rounded to 1 significant figure is 40. Write the error interval for x

Readme [11.4K]

Answer:

40

Step-by-step explanation:

5 0

3 years ago

A person’s retirement account of $30,000 earns 4% each year. Which value would represent the base of the exponential function th

vivado [14]

Well, your probably gonna not go with 30,000 because it stands out like a sore thumb. and 4% is = to .04 So that would be my likely guestimation. 1.04 is probably the answer. in high school you would do 30,000(1+.04/1
)^1*1

and if you were to simplify
30,000(1+.04)
or
30,000(1.04)
So i would say 1.04 is the answer

8 0

3 years ago

Read 2 more answers