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Gennadij [26K]
3 years ago
9

Why does a skateboard on top of a ramp have potential energy.

Mathematics
1 answer:
saveliy_v [14]3 years ago
3 0

Answer:

Conservation of Energy

Step-by-step explanation:

This is because of friction which changes kinetic energy into heat. ... When a skater is at the top of the ramp he has the highest amount of potential energy. Kinetic energy is the energy of motion. The faster the skater moves the more kinetic energy he has.

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Jessica has a circular birdbath in her backyard with a radius of 1.25 feet. She wants to place a decorated border around the cir
Alexxandr [17]

Answer:

The total cost is <em>28.26.</em>

Step-by-step explanation:

The radius of the birdbath is <em>1.25 feet.</em>

The cost per foot is <em>3.6</em> .

<em>The formula for perimeter of circle is given by,</em>

<em>= 2πR , where R is the radius of circle.</em>

Inserting the above value of radius in the equation above,

circumference = 2(π)(1.25) = 2(3.14)(1.25) = 7.85 ft^{2}

Thus the total cost is,

= (7.85)(3.6) = 28.26

4 0
3 years ago
Need a little help with one please
Pani-rosa [81]

Answer:

That would be the side-side-side (SSS) postulate, which states that if all the sides of a triangle are in a fixed ratio to all the corresponding sides of another triangle, then the two triangles are said to be congruent.

Step-by-step explanation:

Looking at triangles ABC and DEF, we notice that:

\frac{AB}{DE} = \frac{AC}{DF}=\frac{BC}{EF}

since

\frac{3}{18} = \frac{6}{36}=\frac{7}{42}=\frac{1}{6}

Let me know if you have further questions.

4 0
3 years ago
Really need help on question 8.
Diano4ka-milaya [45]

Answer:50.18

Step-by-step explanation:

8x+17+9x+11=102

17x+28=102

-28. -28

17x=74

<CAD=9x+11=50.18

x=74/17

5 0
3 years ago
Would the answer be 12.5
matrenka [14]
Yes hope this helps man!!
6 0
3 years ago
Give the answer of in the lowest terms 26/25 •15/28•8/39
DIA [1.3K]
(26/25) x (15/28) x (8/39)

Divide top and bottom by 3 :

(26/25) x (5/28) x (8/13)

Divide top and bottom by 5 :

(26/5) x (1/28) x (8/13)

Divide top and bottom by 4 :

(26/5) x (1/7) x (2/13)

= 52 / 455 = 0.11429... (rounded)
5 0
3 years ago
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