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zzz [600]
3 years ago
7

Best estimate for the length of a park

Mathematics
2 answers:
Kryger [21]3 years ago
4 0

Answer:

136 inches wide

Step-by-step explanation:

fgiga [73]3 years ago
4 0

Answer:148

Step-by-step explanation:

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Factorise x2+3x-4. please
solmaris [256]

Answer:

(−1) (+4)

Step-by-step explanation:

4 0
3 years ago
A cone has a slant length of 5 and a diameter of 4. What is the volume of the cone? Use π ≈ 3.14.
Olegator [25]

Answer:

V = 19.19 cubic units

None of the options are correct.

Step-by-step explanation:

Volume of a cone is given as;

V = ⅓πr²h

Now, we are given;

diameter = 4 units

Thus radius;r = diameter/2 = 4/2 = 2 units

I have attached an image to show the diagram of the cone.

Now, to find the height (h), we know the radius(r) and we know the slant length(l) . So we can use Pythagoras theorem to find the height.

From Pythagoras theorem;

r² + h² = l²

Where l is the hypotenuse or the slant side while "r" is the radius of the cone while the height will be "h"

Thus;

2² + h² = 5²

h² = 5² - 2²

h² = 25 - 4

h² = 21

h = √21

h = 4.5826 units

So height (h) = 4.5826 units

Volume of cone;V = ⅓πr²h

We are told that π = 3.14

Thus;

V = ⅓ x 3.14 x 2² x 4.5826

V = 19.19 cubic units

3 0
3 years ago
Read 2 more answers
8 cm
miss Akunina [59]

Answer:

May be b is the answer...

5 0
2 years ago
Read 2 more answers
You read 1 chapter every hour. You read 3 hours after school. How many chapters did you read?
Marat540 [252]

Answer:

3 Chapters?

Step-by-step explanation:

3x1=3 but I am not sure if it is asking if you read during school or not because this seems like a really simple question and may be over thinking it.

6 0
3 years ago
Read 2 more answers
Bacteria can multiply at an alarming rate when each bacteria splits into two new cells, thus doubling. If we start with only one
Elan Coil [88]

Answer:

2^24 = 16,777,216 bacterias.

Step-by-step explanation:

So we start with 1 bacteria

after 1 hours: 2*1 = 2

after 2 hours: 2*2 = 2^2 = 4

after 3 hours: 2*2^2 = 2^3  

after n hours: 2^n  

Since one day has 24 hours we have n = 24 and total number of bacteria will

be:  2^24 = 16,777,216 bacterias.

5 0
3 years ago
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