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Andru [333]
4 years ago
11

Sound travels at speed of 330 m/s. If a firecracker exploded 3675 m away from you, how long does it take the sound of the explos

ion to reach you?
Mathematics
1 answer:
podryga [215]4 years ago
7 0
Divide the 3675 to the 330 simple
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Two sides of a triangle have the same length. The third side measures 3 m less than twice that length. The perimeter of the tria
Readme [11.4K]

Answer:

two sides have the length of 7m

third side is 11m

Step-by-step explanation:

perimeter is the sum of all sides

let 'n' = length of congruent sides

let '2n - 3' = length of third side

25 = n + n + 2n - 3

25 = 4n - 3

28 = 4n

n = 7m

2(7) - 3 = 11m

6 0
3 years ago
Please help me I don’t understand
Scilla [17]
I think 8. Plug in -4 for x. 1/2-4^2
Using pemdas -4^2 is 16 and 1/2•16 is 8. If there were parenthesis around 1/2x then 1/2•-4 would be -2 and -2^2 is 4 but since there aren’t parentheses then 8
3 0
3 years ago
Can someone help me please?? <br><br> It’d be greatly appreciated!
telo118 [61]
The shape is a square, therefore, all sides are equal.
The edge of the circle touches the edge of the square, and thus, one side of the square can be considered to be the same length as the diameter of the circle.
The formula for circumference is :

2"pie"r

Perimeter = 40ft.
Therefore each side = 10ft.

Therefore diameter = 10ft.

Therefore radius = d/2 = 10/2 = 5 ft.

Therefore circumference = 2"pie"5 ft = 10"pie" ft
(don't forget the unit of measurement!)

Hope this helped ~
3 0
3 years ago
Can you give me an equation that equals to 31
lys-0071 [83]
There are m any examples of equations that equal 31. Here are a few:
17 + 14
30 + 1
60 - 29

I like this one though (its 2 step)

(15 x 2) + 1

Hope this helped :)
7 0
4 years ago
Read 2 more answers
The _____ is used to measure volume.<br> a.meter<br> b.gram<br> c. liter
Savatey [412]
Liter is used to measure volume
3 0
3 years ago
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