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Otrada [13]
3 years ago
13

Jaylin has a scale model of a train. 2 cm in the model represents 3 feet in a real train. The height of the model train is 10.2

cm. What is the height of the rail train?
Mathematics
1 answer:
Korolek [52]3 years ago
6 0

Answer:

the height of the rail train is 15.3 feet

Step-by-step explanation:

The computation of the height of the rail train is given below:

= Height of the model train ÷ 2 cm × real train

= 10.2 cm ÷ 2 cm × 3 feet

= 15.3 feet

Hence, the height of the rail train is 15.3 feet

We basically applied the above formula in order to get the height of the rail train

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An arc subtends a central angle measuring \dfrac{3\pi}{5}
Diano4ka-milaya [45]

Answer:

3/10

Step-by-step explanation:

The central angle of the arc is \frac{3 \pi}{5}.

The circumference of an arc of a circle is given as:

C_a = \frac{\theta}{2 \pi} * C

where C= circumference of the circle

θ = central angle of the arc

Therefore, the circumference of the arc is:

C_a = \frac{\frac{3 \pi}{5} }{2 \pi} * C\\\\C_a = \frac{3 \pi}{10 \pi} * C\\\\C_a = \frac{3}{10}C

The circumference of the arc will be 3/10 of the circumference of the circle.

8 0
3 years ago
Mr. Hynes buys a large variety bag of Hershey chocolates to give out for Valentine’s Day. The bag of chocolates costs $8.00 and
zmey [24]

Answer:

1.50

Step-by-step explanation:

4 0
3 years ago
PLEASE p-l-e-a-s-e help, there are 3 math questions, thank you!
Serjik [45]
You use Pythagorean theorem to solve this problem.a^2+b^2=c^2
A.53*53=45*45+28*28
2809=2025+784
2809=2809

B.85*85=13*13+84*84
7725=169+7056
7725=7725
C.85*85=36*36+77*77
7725=1296+5929
7725=7725
D.65*65=16*16+61*61
4225=256+3721
4225=3977

The answer is D
6 0
4 years ago
Read 2 more answers
Help I will be marking brainliest!!
Korolek [52]

Answer:

<u>Given</u>: base = 10.4ft, height = 12.5

Area of octagon = 8(1/2 × b × h)

  • 8(1/2 × 10.4 × 12.5)
  • 520ft²

Volume of pool = 520ft² × 3ft

  • 1560ft³

Now, 1 cubic ft takes 7.5 gallons to fill.

Therefore, 1560 cubic ft takes,

  • 1560 × 7.5
  • 11700

So, <u>Correct choice</u> - [D] 11,700.

3 0
3 years ago
Which table contains only the points that lie on the line represented by y=5/4x-3​
jenyasd209 [6]

Answer:

A table that represents a linear equation should be your answer. This means your slope should be constant/straight not like a parabola or absolute function.

Step-by-step explanation:

When you're trying to solve something using slope-intercept you can graph it or plug numbers for (x,y).  


Graph:

Start at (0,-3)

Then plot the point since that is your Y-Intercept

Then go 5 up and 4 over to find your next point.

Once done, you should connect the dots to form a slope or a linear equation.

6 0
2 years ago
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