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puteri [66]
3 years ago
7

What is the best approximation for the perimeter of a semicircle with a diameter of 12 cm? Use 3.14 to approximate pi. A)18.84 c

m B)30.84 cm C)61.68 cm D)75.36 cm    hurry please
Mathematics
1 answer:
sp2606 [1]3 years ago
7 0
I say A but you probably arnt gonna trust my answers again...gd luck!! xx
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PLEASE PLEASE HELP WILL MARK BRAINLY
Hitman42 [59]

Answer:

The second option (see attached image)

Step-by-step explanation:

You are looking for a box diagram that represents 9 units, and from those, clearly marked sections that contain 3/2 = 1.5 units.The idea is to count how many 1.5 units you have in 9 units.

The in the second diagram you see 9 boxes subdivided in half. Then outlined in red other smaller boxes of length 1.5 units. We can clearly see from the diagram that there are exactly 6 of these smaller 1.5 units red boxes to produce the total 9 unit object.

5 0
2 years ago
A cylinder contain 150.8 cubic units of water. What is the minimum radius of a sphere that will hold the water? Round to nearest
Oksi-84 [34.3K]
70 because you would divide 150.8 by 2 and it gives you 75.4 but you have to round it and do v=4/3×3.14×70^3
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3 years ago
Please help! These are composite figures, find the area of the figure and round your answer to one decimal place, if necessary.
EastWind [94]

Answer: 1333.25

Step-by-step explanation: The area of the rectangle is 23x23 = 529.

Area of the square is 804.25. So add them toget her and you get your answer.

5 0
2 years ago
Read 2 more answers
a section of ground measures 1.5 cubic meters and contains 0.78 gram of gold. what is the amount of gold per cubic meter? explai
I am Lyosha [343]
The answer

<span>the amount of gold per cubic meter can be found by the ratio

0.78 g  /1 </span><span>.5 cubic meters = 0.52 g / cubic meter,  
proof 
it was said </span><span>the amount of gold per cubic meter (Density)</span>
7 0
3 years ago
What is the graph of the solution to the following compound inequality?
ohaa [14]

Answer:

<h2>C.</h2>

Step-by-step explanation:

<, > - open circle

≤, ≥ - solid circle

<, ≤ - draw to the left

>, ≥ - draw to the right

3-x\geq2\qquad\text{subtract 3 from both sides}\\\\-x\geq-1\qquad\text{change the signs}\\\\\boxed{x\leq1}\\\\4x+2\geq10\qquad\text{subtract 2 from both sides}\\\\4x\geq8\qquad\text{divide both sides by 4}\\\\\boxed{x\geq2}

3 0
3 years ago
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