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Marysya12 [62]
2 years ago
13

I have 0 idea. can someone help me?

Mathematics
1 answer:
aliina [53]2 years ago
6 0

Answer:

2a+8 (square root b)................. third option

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In a park,a sidewalk is built around the edge of a circular pond.The sidewalk is 7 feet wide,and the pond measure 15 feet across
densk [106]

Answer:

91.14 feet

Step-by-step explanation:

Given:

In a park,a sidewalk is built around the edge of a circular pond.

The sidewalk is 7 feet wide, and the pond measure 15 feet across.

Question asked:

What amount of railing would be needed to go completely around the outer edge of the sidewalk?

Solution:

From distance from one edge of the pond to the another =  15 feet

That means diameter of the pond = 15 feet

And width of the sidewalk = 7 feet all around

combined diameter = 15 + 7 + 7 = 29 feet

Radius,r = \frac{Diameter}{2} =\frac{29}{2} ==14.5\ feet

That means distance between outer edge of the sidewalk to the center of the circular pond = 14.5 feet

Now, we will have to find circumference of outer circular edge of sidewalk:

Circumference\ of\ circle=2\pi r

                                        =2\times\frac{22}{7} \times14.5\\ \\ =\frac{638}{7} \\ \\ =91.14\ feet

Therefore, 91.14 feet would be needed to go around the outer edge of the sidewalk.

7 0
3 years ago
The position of an object at time t is given by s(t) = 1 - 12t. Find the instantaneous velocity at t = 2 by finding the derivati
yulyashka [42]

The change of displacement with respect to time is defined as speed. Velocity is a vector quantity. The instantaneous velocity at t = 2 is -12.

<h3>What is velocity?</h3>

The change of displacement with respect to time is defined as Velocity. velocity is a vector quantity. It is a time-based component. Its standard unit is m/sec.

Given that the position of an object at time t is given by s(t) = 1 - 12t. Therefore, the velocity of the object can be written as,

V = ds/dt

   = d(1 - 12t)/dt

   = -12

s'(t) = -12

Now, the instantaneous velocity at t=2 is,

s'(2) = -12

Hence, the instantaneous velocity at t = 2 is -12.

To learn more about Velocity:

brainly.com/question/862972

#SPJ1

5 0
2 years ago
Mrs. Stevens is delivering flowers to a local flower shop. She delivers the same number of flowers with each delivery. The flowe
Zigmanuir [339]
513 flowers because if you divided 2,050 by 4 you get 512.5, but if you round you get 513
7 0
3 years ago
Read 2 more answers
Need help on these problems
kupik [55]
Simple Interest = Principal * Interest Rate * Term
Total Amount = Principal + Simple Interest

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</span><span> 1 <span>         100.00         </span>6%             1 <span>           6.00 </span> <span>         106.00
</span></span><span> 3 <span>         100.00         </span>6%             2 <span>         12.00 </span> <span>         112.00
</span></span><span> 5 <span>         100.00         </span>6%             3 <span>         18.00 </span> <span>         118.00
</span></span><span> 7 <span>         100.00         </span>6%             4 <span>         24.00 </span> <span>         124.00
</span></span><span> 9 <span>      3,000.00         </span>5%             3 <span>      450.00 </span> <span>      3,450.00
</span></span><span>10 <span>     4,000.00         </span>6%             3 <span>      720.00 </span> <span>      4,720.00
</span></span><span>11 <span>   10,000.00         </span>4%             3 <span>   1,200.00 </span> <span>    11,200.00
</span></span><span>13 <span>   10,000.00         </span>6%             4 <span>   2,400.00 </span> <span>   12,400.00
</span></span><span>14 <span>   10,000.00         </span>6%             5 <span>   3,000.00 </span> <span>   13,000.00 </span> </span></span></span>
5 0
3 years ago
The price of a video game was reduced from $60
Zigmanuir [339]
You take the orignal price of the video game and subtract the new price to see how much it was reduced. 60-45 = 15. then you take the reduced amount of the game (15) and divide by the original price (60). 
you get 25%
your answer is B
7 0
3 years ago
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