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tiny-mole [99]
3 years ago
9

Whats the answer? A, B, C, or D?

Mathematics
1 answer:
Firdavs [7]3 years ago
3 0

The answer is the second choice.

P (pounds) = 5D (Dollars)



Hope this might help!

:D

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If a 24-kg mass stretches a spring 15 cm, what mass will stretch the spring 10 cm
natulia [17]

Answer:

<h2>16kg</h2>

Step-by-step explanation:

 This problem is borers on elasticity of materials.

according to Hooke's law,<em> "provided the elastic limit of an elastic material is not exceeded the the extension e is directly proportional to the applied force."</em>

F= ke

where F is the applied force in N

          k is the spring constant N/m

          e is the extension in meters

Given data

mass m= 24kg

extensnion=15cm in meters= \frac{15}{100}= 0.15m

we can solve for the spring constant k

we also know that the force F = mg

assuming g=9.81m/s^{2}

therefore

24*9.81=k*0.15\\235.44=k*0.15\\k=\frac{235.44}{0.15} \\k=1569.6N/m\\

We can use this value of k to solve for the mass that will cause an extension of  10cm= 0.1m

x*9.81=1569.6*0.1\\\\x= \frac{156.96}{9.81} \\\x= 16kg

5 0
3 years ago
HOW DO I SOLVE FOR [350-(110-30)/2]
Cloud [144]
First, do 110-30 (You'll get 90). Then, divide 90 by 2 (You'll have 45). Finally, take 45 from 350. Your final answer should be 305.
4 0
3 years ago
Read 2 more answers
What is S5 for 1000 + 500 + 250 + ... ?
leva [86]
1000 + 500 + 250 + 125 + 62.5 = 1,937.5
3 0
3 years ago
Read 2 more answers
Could use help on this one! I'll send thanks and mark Brainiest at when finished to see who's correct.
sdas [7]

sqrt (3/10)

sqrt(3)/sqrt(10)

no sqrt in the denominator, so multiply by sqrt(10)/sqrt(1)

sqrt(3) sqrt(10)

-------------------

sqrt(10) sqrt(10)

sqrt(30)/10

Choice D


8 0
3 years ago
The present age of the father and his son is 32 years and 7 years respectively.
Romashka-Z-Leto [24]

Answer:

ok so im so confused but like you know i tried and i got this:

X years ago, the father’s age and the son’s age would be (32 - x) and (7 - x) years old.

(32 - x)(7 - x) = 116

(x - 32)(x - 7) = 116

x^2 - 39x + 224 = 116

x^2 - 39x + 108 = 0

(x - 3)(x - 36) = 0

x = 3, 36

But (32 - x) > 0, so x does not equal to 36.

x = 3

3 years ago, the father would be 29 years old, and the son 4 years old.

i know it sounds crazy but i think its wrong lol

3 0
3 years ago
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