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tatuchka [14]
3 years ago
14

A skydiver descends at 20 1 3 kilometers per hour after deploying their parachute. Which of the following expressions represents

the change in the skydiver's altitude if they descend for 4 7 of an hour?
Mathematics
1 answer:
kykrilka [37]3 years ago
5 0

1250mph you'd tear through the crust of the earth and create a supervolcano to end all of us.

Step-by-step explanation:

Never fall that fast when parachuting, only you can prevent supervolcanoes.

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The diagonal of a square is x units. What is the area of the square in terms of X?
lesantik [10]

Answer:

\frac{1}{2}x^2 square units

Step-by-step explanation:

The simple formula we need here is:

d=s\sqrt{2}

Where

d is length of diagonal

s is length of side of square

Let's find side length of square from information given:

d=s\sqrt{2} \\x=s\sqrt{2} \\s=\frac{x}{\sqrt{2}}

Now,

we know area of square is  s^2

We know s, and now we find area

Area = s^2\\(\frac{x}{\sqrt{2}})^2\\\frac{x^2}{2}\\\frac{1}{2}x^2

The first answer choice is right, 1/2x^2 sq. units.

5 0
3 years ago
Please help, brainliest for correct answer
skelet666 [1.2K]

Answer:

800

Step-by-step explanation:

3/4*3.14*(14/2)^3 = 807.77

3 0
3 years ago
Read 2 more answers
Help please with this
Evgen [1.6K]
Profur aodbdb aowijwjejsjw8
3 0
4 years ago
Read 2 more answers
I need help <br> Help please <br> 22 points
ch4aika [34]

Answer:

$22.7325

Step-by-step explanation:

12.99 * 1.75 = 22.7325

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6 0
3 years ago
Please solve the problem.
Deffense [45]
OK.  I did it, and I have the solution.
_____________________________________

The length of the deck is  (5 + 2x) .
The width of the deck is   (4 + 2x) .

If the deck didn't have that big hole in the middle where the pool is,
then its area would be

                 (5 + 2x) · (4 + 2x) .

When you multiply that all out, you get    Area = 4x² + 18x + 20

and the question tells us that the area of the whole big rectangle is 90 yds² .
So we can write

                                             4x² + 18x + 20  =  90 .

Subtract 90 from each side:    4x² + 18x - 70  =  0
Divide each side by 2 :           2x² + 9x - 35  =  0

You can use the quadratic equation to solve that and find out that
x = 2.5 yards, and that's what the question is asking you.
___________________________________________________

That makes the deck  10 yds high and 9 yds wide.

Total area of the whole big rectangle, (deck + pool ),  =  90 yds².
 
3 0
3 years ago
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