Answer:
13/18
Step-by-step explanation:
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2.
3.
4.
5.
Answer:
x = 16
Step-by-step explanation:
12(x - 20) = -48
Use distributive property
12*x - 12*20 = -48
12x - 240 = -48
Add 240 to both sides
12x = -48 + 240
12x = 192
Divide both sides by 12
x = 192/12
x = 16
The scale factor shows how many times smaller is the small ball than the regular one .
So the scale factor is = 10/46 = 0.217
The value of the length of BC is 45 units
<h3>How to determine the length BC?</h3>
The given parameters are:
BC = 15x
AD = 32x - 2
EF = 20.5x + 8
Where the parallel bases are AD and BC and the midsegment is EF
By the midsegment theorem, we have
2 * EF = AD + BC
Substitute the known values in the above equation
2 * (20.5x + 8) = 15x + 32x -2
Open the bracket
41x + 16 = 15x + 32x - 2
Evaluate the like terms
6x = 18
Divide both sides by 6
x = 3
Substitute x = 3 in BC = 15x
BC = 15 * 3
Evaluate
BC = 45
Hence, the value of the length of BC is 45 units
Read more about isosceles trapezoid at:
brainly.com/question/10187910
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