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natka813 [3]
2 years ago
7

Eeeeeeeeeeeeeeeeeeeee

Mathematics
2 answers:
vitfil [10]2 years ago
5 0
Answer 42
explanation
11111nata11111 [884]2 years ago
3 0

Answer:

I think the answer is 42

Step-by-step explanation:

So, with all of that, the equation will now be = 5^2 + (2 * 8) / 2 + (3 * 3)

So next, you can use PEMDAS. After that, u should get ur answer of 42.

Work:

5^2 + (2 * 8) / 2 + (3 * 3)

5^2 + 16 / 2 + 9

25 + 16 / 2 + 9

25 + 8 + 9

25 + 17

= 42

Hope this helps :D!!

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A spring has natural length 20 cm. Compare the work W1 done in stretching the spring from 20 cm to 30 cm with the work W2 done i
sashaice [31]

Answer:

W1 = W2 = 50k Joules (assuming W1 and W2 have the same force constant, k)

W1 - W2 = 0

Step-by-step explanation:

Work done in stretching a spring is given by 1/2ke^2

Where, k is force constant and e is extension

e1 = 30cm - 20cm = 10cm

W1 = 1/2k(e1)^2 = 1/2×k×10^2 = 50k Joules

e2 = 40cm - 30cm = 10cm

W2 = 1/2k(e2)^2 = 1/2×k×10^2 = 50k Joules

W1 = W2 = 50k Joules provided W1 and W2 have equal force constant

Therefore, W1 - W2 = 0

7 0
3 years ago
Determine y when x = 2.5, if y = 144 when x = 8.
Mrac [35]

Answer:

=144*8/2.5

=1152/2.5

=460.8

Step-by-step explanation:

there you go

4 0
2 years ago
For a science experiment Marcia dissolved 1.0 kilogram of salt in 3.0 liters of water. For a different experiment, Bobby dissolv
nekit [7.7K]
Marcia dissolved 1 kg of salt in 3 litres of water.
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Marcia is dissolving 1 kg of salt in 3 litres of water.
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Give an example of corresponding angles
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3-7, 4-8, 2-6, and 1-5 are all corresponding. 
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