3(x+2)<2(x-1) solve this inequality

1 answer:

8 0

For example, if x is 3. then 3(3+2=5),3*5 is 15. 2(3-1=2),2*2 is 4. so, if it says that 2(x-1) is greater than 3(x+2), then this inequality is most likely false.

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Annalisa, Keiko, and Stefan want to compare their heights. Annalisa is 64 inches tall. Stefan tells her, "I'm about 7.5 centimet

Ede4ka [16]

As 1 inch = 2.54 cm.

As Annalisa is 64 inches tall,

so the height of Annalisa in centimeter = 64 x 2.54 cm = 162.5 cm (approximately).

Stefen is about 7.5 centimeters taller than Annalisa,

So, height of Stefen in centimeter= 162.5+7.5=170 cm.

and the height of Stefen in inches = 170/ 2.54 cm= 67 inches (approximately).

Keiko is about 1.5 inches shorter than Stefen,

So, the height of Keiko in inches= 67-1.5=65.5 inches.

and the height of Keiko in centimeter = 71.5 x 2.54 cm= 166.5 cm (approximately).

Hence, Annalisa is 64 inches or about 162.5 cm tall.

Stefan is about 67 inches or about 170 cm tall.

Keiko is about 65.5 inches or about 166.5 cm tall.

5 0

3 years ago

If FE measures 20 centimeters, the approximate area of circle B is what

MAXImum [283]

If FE measures 20 cm, then the area is 314 cm², if BE measure 3.5 cm, then the area is 38.5 cm², if AB measures 11 cm, then the area is 380 cm² and is EF measures 12 cm, then the area is 113 cm².

Area of a circle:

A = π r²

r = 1 /2 of diameter.

FE is the diameter

r = 20 / 2

r = 10 cm

Area of circle using FE:

A = π ( 10 )² = π × 100 = 314 cm²

BE is a radius:

Area = π × 3.5² = π × 12.25 = 38.465

A = 38.5 cm²

AB is a radius:

Area = π × 11²
A = π × 121

A = 379.94 = 380 cm²

EF is a diameter:

r = 12 / 2 = 6 cm

Area = π × 6²

A = π × 36

A = 113.04 = 113 cm²

Therefore, if FE measures 20 cm, then the area is 314 cm², if BE measure 3.5 cm, then the area is 38.5 cm², if AB measures 11 cm, then the area is 380 cm² and is EF measures 12 cm, then the area is 113 cm².

Learn more about area here:

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Your question was incomplete, Please refer the content below:

1) if FE measures 20 centimeters, the approximate area of circle B is what?

2) if BE measures 3.5 centimeters, the approximate area of circle B is what?

3) if AB measures eleven centimeters, the approximate area of circle B is what

4) If EF measures twelve centimeters, the approximate area of circle B is what?