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Brrunno [24]
2 years ago
13

If EF=2x−12, FG=3x−15, and EG=23, find the value of FG

Mathematics
1 answer:
bixtya [17]2 years ago
5 0

Answer:

FG= 15

Step-by-step explanation:

2x-12+3x-15=23

5x-27=23

-27+27 23+27

5x=50

5x/5=50/5

x=10

FG= 3x-15

3(10)-15

30-15

FG=15

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<h2>Answer:</h2>

<em>Rounded to the nearest hundredth the volume of the composite figure is:</em>

<em>1308 33 cubic millimeters</em>

<h2>Explanation:</h2>

Hello! I wrote the complete question in a comment above. The volume of a cylinder is defined as:

V_{c}=\pi r^2 h \\ \\ r:radius \\ \\ h:height

While the volume of half a sphere is:

V_{hs}=\frac{2}{3}\pi r^3

Since we have 2 half spheres, then the volume of these is the same as the volume of a sphere:

V_{s}=\frac{4}{3}\pi r^3

Then, the composite figure is:

V=\pi r^2 h +\frac{4}{3}\pi r^3 \\ \\ V=\pi r^2(h+\frac{4}{3}r)

The radius of the cylinder is the same of the radius of each half sphere. So:

r=5mm \\ \\ h=10mm \\ \\ \\ V=(3.14) (5)^2((10)+\frac{4}{3}(5)) \\ \\ V=25(3.14)(10+\frac{20}{3}) \\ \\ \boxed{V\approx 1308.33mm^3}

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2 years ago
Which of the following equals 140 to nearest 10
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Step-by-step explanation:

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see below

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