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nydimaria [60]
3 years ago
15

The diagram below shows a mass suspended on a string called a pendulum.

Mathematics
1 answer:
mamaluj [8]3 years ago
3 0

Answer:

D-gravitational energy is converted to chemical energy

Step-by-step explanation:

Please give me brainliest

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The figure below shows the quotient of Fraction 3 over 4 divided by Fraction 3 over 8 .
Orlov [11]

Answer:

i think i know

Step-by-step explanation:

3 0
3 years ago
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What does (2, 120) represent
Dafna11 [192]
I believe the answer would be 2 of 120
6 0
3 years ago
A triangle has two sides that have a length of 4 cm.
DiKsa [7]

Answer:

3 acute angles with different measures and 1 right angle and 2 acute angles with same measures

8 0
3 years ago
What is the sum of the geometric series
Sergio039 [100]
Answer: 2343 / 256

Explanation

I will do this for you in two forms: 1) adding each term, and 2) using the general formula for the sum of geometric series.

1) Adding the terms:

 4
∑ 3 (3/4)^i = 3 (3/4)^0 + 3 (3/4)^1 + 3 (3/4)^2 + 3 (3/4)^3 + 3 (3/4)^4
i=0

= 3 + 9/4 + 27/16 + 81/64 + 243/256 = [256*3 + 27*16 + 64*9 + 4*81 + 243] / 256 =

= 2343 / 256

2) Using the formula:

n-1
∑ A (r^i) = A [1 - r^(n) ] / [ 1 - r]
i=0

Here n - 1 = 4 => n = 5

r = 3/4

A = 3

Therefore the sum is 3 [ 1 - (3/4)^5 ] / [ 1 - (3/4) ] =

= 3 [ 1 - (3^5) / (4^5) ] / [ 1/4 ] = 3 { [ (4^5) - (3^5) ] / (4^5) } / {1/4} =

= (3 * 781) / (4^5) / (1/4) =  3 * 781 / (4^4) = 2343 / 256

So, no doubt, the answer is 2343 / 256
5 0
3 years ago
A restaurant sold 250 drinks in a night. Some of the drinks were sold for $2 each, and the rest for $5 each. If the total sales
Masja [62]

Answer:

140

Step-by-step explanation:

Suppose,

x drinks were sold for 2$

y drinks were sold for 5$

therefore, x+y = 250....( 1 )

and 2x+5y = 830......( 2 )

multiply equation ( 1 ) with 2,

2x+2y = 500......( 3 )

Subtract equation ( 3) from (2)

3y = 330

or, y = 110

so, x = 140

so, 140 drinks were sold for 2$

7 0
3 years ago
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