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ArbitrLikvidat [17]
3 years ago
14

What is the volume of a hemisphere with a diameter of 7.1 ft, rounded to the nearest tenth of a cubic foot?

Mathematics
1 answer:
nordsb [41]3 years ago
7 0

Answer:

7 feet i think? i may be wrong tho

Step-by-step explanation:

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1.9 as a mixed number in simplest form
Yuri [45]
1.9 = 1 9/10 in simplest form
5 0
3 years ago
The Perimeter of the park is 318 m. Determine the length of the park<br><br> PLEASE HELP!!!!!!!!!
Vadim26 [7]

Answer:

79.5m

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
LaShaundra is buying fence for two triangular sections of her garden.
mixas84 [53]

Answer: 80 feet.


Step-by-step explanation:

1. As you can see in the figure, triangle ABC and the triangle DFG are similar.

2. The scale of factor of triangle ABC to triangle DFG is the following:

sf=\frac{20ft}{4ft}\\sf=5ft

3. Therefore, the lenght of the side DG of the trinagle DFG is:

DG=5*AC\\DG=5*7ft\\DG=35ft

4. The perimeter of the triangle DFG is:

P_{DFG}=20ft+25ft+35ft=80ft

5. Therefore, she would need 80 feet of fence.


8 0
3 years ago
Solve the system of equations 2x + 3y = 40 and –2x + 2y = 20.
Flura [38]
2x + 3y = 40
+
-2x + 2y = 20
___________                  Adding both equations

0x + 5y  = 60
____________


5y = 60
y = 60/5 = 12

y = 12.

Since we have gotten y =12, and the only option with that is option D.

So we don't have to solve for x.

<span>The answer is D.</span>
7 0
3 years ago
Part 1:
Gnom [1K]
P = 2(L + W)
L = 4/3W

P = 2(4/3W + W) <=== part 1 is D

when P = 28
28 = 2(4/3W + W)
28/2 = 4/3W + 3/3W
14 = 7/3W
14 / (7/3) = W
14 * 3/7 = W
42/7 = W
6 = W....width is 6 inches

L = 4/3W
L = 4/3(6)
L = 24/3
L = 8....length is 8 inches

A = L * W
A = 8 * 6
A = 48 in^2 <==== part 2

7 0
3 years ago
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