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skad [1K]
3 years ago
15

What is the exact circumference of the circle?

Mathematics
2 answers:
umka2103 [35]3 years ago
8 0

Answer:

40

Step-by-step explanation:

Paraphin [41]3 years ago
5 0
40 when you add both sides up
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Problem 1. (1 point) A steel ball weighing 128 pounds is suspended from a spring. This stretches the spring 128101 feet. The bal
stepladder [879]

Answer:

seeed

Step-by-step] explanation:

ddd~!`

7 0
3 years ago
Can someone please help me I really need help please help me
scZoUnD [109]

Answer:

18.87 square cm.

Step-by-step explanation:

The area of the rectangle will be (4 + 4) * 4, since the length of the rectangle would be the diameter of the circle, and the width of the rectangle would be the radius. (4 + 4) * 4 = 8 * 4 = 32 square cm.

Then, we can calculate the area of the semicircle. The area of a circle is pi * r^2, so the area of a semicircle will be half of that. pi * (4^2) / 2 = pi * 16 / 2 = 8pi. 8 * 3.14159265 = 25.1327412 square cm.

The shaded area of the middle of the shape will then be 32 - 25.1327412 = 6.8672588 square cm.

The two triangles will have the same area. Their bases will be 14 minus the diameter of the circle, then divide that by 2 to get each separate base. 14 - 8 = 6 / 2 = 3. The heights of the triangles will be the radius of the circle, or 4 cm.

1/2 * 3 * 4 = 1/2 * 12 = 12/2 = 6. That is the area of one triangle, so the area of both triangles would be 6 * 2 = 12 square cm.

6.8672588 + 12 = 18.8672588, or 18.87 square cm.

Hope this helps!

3 0
3 years ago
Read 2 more answers
the venn diagram represents the results of a survey that asked participants whether they would want a rabbit or a snake as a pet
rosijanka [135]
For this case we will complete the table part by part.
 We have then:

 First row:
 Snake = Rabbit = 4
 Rabbit = Not Snake = 18
 Total = 4 + 18 = 22

 Second row:
 Not rabbit = Snake = 11
 Not rabbit = Not Snake = 26
 Total = 11 + 26 = 37

 Third row:
 Total = 4 + 11 = 15
 Total = 18 + 26 = 44
 Total = 59
3 0
3 years ago
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Determine the explicit formula of the following sequence -3,-18,-108...
kvv77 [185]

Answer:

a_{n} = - 3(6)^{n-1}

Step-by-step explanation:

Note the common ratio r between consecutive terms, that is

r = - 18 ÷ - 3 = - 108 ÷ - 18 = 6

This indicates the sequence is geometric with n th term ( explicit formula )

a_{n} = a(r)^{n-1}

where a is the first term and r the common ratio

Here a = - 3 and r = 6, thus

a_{n} = - 3(6)^{n-1}

3 0
3 years ago
An airport parking lot has 2,800 spaces. if each row has 25 spaces, how many rows are there?
rjkz [21]
Answer: 112 rows

2800/25 spaces = 112 rows
6 0
2 years ago
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