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valkas [14]
3 years ago
12

Jon borrows $4.50 from his friends to pay for his snacks, and $13.65 from his sister to go to the movies. How much money does he

need to repay?
Mathematics
1 answer:
yarga [219]3 years ago
4 0

Answer: $18.15

Step-by-step explanation:

$ 4.50 + $13.65 = total amount due

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How many times greater is the population of china than the population of france? write your answer in standard notation
bezimeni [28]
<em>In Scientific Notation:</em>
China's current population is 1,355,692,544 while France only has 66,259,012. China has 1.29x10⁹ more people than the latter has. China is 0.20x10⁻² times greater in terms of population than France. 

<em>In Mathematical sentence:</em>
China has over 1,289,433,532 people than France.
It is 20.46050044 times greater in population than France.
3 0
3 years ago
Read 2 more answers
How is the measure of an arc related to its central angle?
KATRIN_1 [288]

Answer:

Arc Measure: In a circle, the degree measure of an arc is equal to the measure of the central angle that intercepts the arc. Arc Length: In a circle, the length of an arc is a portion of the circumference. The letter "s" is used to represent arc length.

Step-by-step explanation:

4 0
3 years ago
A man weighing 800 N is hanging from a 2 mm diameter titanium wire with a cross-section of 3 x 10^-6 m^2. Will the wire break?
DENIUS [597]

Answer:

Since stress is greater than ultimate strength, the wire will break.

Step-by-step explanation:

The titanium wire is experimenting an axial load. Ultimate strength equals 2.20\times 10^{8}\,Pa. The wire shall break if and only if stress is at least equal to ultimate strength. The equation for axial stress (\sigma), measured in pascals, in the wire with circular cross-section is:

\sigma = \frac{4\cdot F}{\pi\cdot D^{2}} (1)

Where:

F - Axial force, measured in newtons.

D - Cross-section diameter, measured in meters.

Please notice that axial force is the weight of the man hanging from wire.

If we know that F = 800\,N and D = 0.002\,m, then the axial stress experimented by the titanium wire is:

\sigma = \frac{4\cdot (800\,N)}{\pi\cdot (0.002\,m)^{2}}

\sigma \approx 2.546\times 10^{8}\,Pa

Since stress is greater than ultimate strength, the wire will break.

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3 years ago
The diameter of a circle is 16 centimeters. How would you calculate the area?
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The answer is C
explanation
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2 years ago
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Strike441 [17]

Answer:

a

Step-by-step explanation:

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