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N76 [4]
3 years ago
14

1

Mathematics
1 answer:
NikAS [45]3 years ago
5 0

9514 1404 393

Answer:

  1.0 N

Step-by-step explanation:

When the length increases by the factor 120/80 = 3/2, the force required is multiplied by the inverse of this: 2/3.

The required force is ...

  (2/3)(1.5 N) = 1.0 N

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If a : b = 4 : 3 and b : c = 6 : 5, what is a : c?<br><br>please help!!​
Gnoma [55]

Answer:

8:7

Step-by-step explanation:

7 0
3 years ago
A tank on a road roller is filled with water to make the roller heavy. The tank is a cylinder that has a height of 6 feet and a
Marizza181 [45]
First, we find the volume.

V=pir^{2}h
V=pi(2)^{2}6
V=pi(4)6
V=75.4

Now, we use this as the capacity and multiply it by the weight of the water.

75.4*62.5=4712.5

4712.5, the 5 means we round up, so your answer is 4713. Hope this helped!


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4 0
3 years ago
Can it be concluded that if there is a 50% chance of contracting a communicable disease through contact with an infected person,
crimeas [40]

Answer:

No it cannot be concluded.

Step-by-step explanation:

The probability of getting the disease in the first attempt is 50%

The probability of getting the disease in the second attempt is 50%

Thus the probability of getting the disease in either of the turns is 50%+50%=100% (which may seem to be true)

BUT

The probability of not  getting the disease in the first attempt is 50%

The probability of not getting the disease in the second attempt is 50%

Thus the probability of not getting the disease in either of the turns is 50%+50%=100% (which is also true for this case)

Thus the probability of getting the disease in either of the 2 contacts is still 50%

4 0
4 years ago
Work out (5 x 10-3) + (2 x 10-1) Give your answer in standard form.​
Grace [21]

Answer:

2.05 · 10^-1

Step-by-step explanation:

(5·10^-3)+(2·10^-1) = 2.05 × 10^-1

7 0
2 years ago
A department store is haveing 30% off sale on all pair of jeans. If you have an coupon for an additional 15% off any items price
aleksandr82 [10.1K]

then jeans will cost $38.25

7 0
3 years ago
Read 2 more answers
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