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hoa [83]
2 years ago
13

Some examples of parabolas in nature

Mathematics
1 answer:
Daniel [21]2 years ago
4 0

Answer:

- The Mcdonalds sign (M symbol)

- The recurrent image of water being "shot" in the air by a fountain and falls back in a parabolic path

- Ball thrown in air falls back towards the Earth's core (due to gravity/weight) and follows a parabolic path

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Temperature affects the speed of sound. The speed (v) of sound near Earth's surface, in
Bingel [31]

Answer:

The temperature in degrees Celsius is <em>-48°C </em>.

Step-by-step explanation:

The given equation is:

v = 20√[t + 273]

Therefore, rearranging we get:

(v / 20)² = t + 273

t = (v / 20)² - 273

but the speed of sound, v, is equal to 300 m/s

Therefore,

t = (300 / 20)² - 273

<em>t = -48°C</em>

<em></em>

Therefore, the temperature in degrees Celsius is <em>-48°C </em>.

8 0
4 years ago
12 subtracted from a negative number is 16. Write as an equation
cupoosta [38]

Step-by-step explanation:

(-x)-12=16

-x=28

x=28

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7 0
3 years ago
Nathan wants to draw a triangle. He knows that two of the side lengths are 5 inches and 7 inches. What is a possible length for
Talja [164]

Answer:

the third side would be 5 inches.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Abdul bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He pa
slavikrds [6]

Answer:

The cost of desktop before finance charge was $1750.

The cost of laptop before finance charge was $1900.

Step-by-step explanation:

Let us assume this is a simple interest scenario.

Let D be the cost of desktop

Let L be the cost of laptop

Given- the laptop cost $150 more than the desktop.

So, L=D+150

The total finance charge for 1 year is given by :  

0.07D+0.095L =303

Substituting the value of L here, we get;

0.07D+0.095(D+150) =303

=>0.07D+0.095D+14.25 =303

=> 0.165D+14.25 =303

=> 0.165D=303-14.25

=> 0.165D=288.75

D = $1750

As L=D+150

So, L=1750+150=1900

L = $1900

We can check this :

0.07(1750)+0.095(1900) =303

=> 122.50+180.50=303

=> 303=303

So, the cost of desktop before finance charge was $1750.

The cost of laptop before finance charge was $1900.

3 0
4 years ago
If you place a 29-foot ladder against the top of a building and the bottom of the ladder is 16 feet from the bottom of the build
Anettt [7]

Answer:

24.2 feet.

Step-by-step explanation:

pythagorean theorem will solve this so A^2 + B^2=C^2

we have a and c so you do c -a and square root it to get your answer

4 0
3 years ago
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