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4 years ago

12

a plastic puzzle in the shape of a triangular prism has bases that are equilateral triangles with side lengths of 4 inches and a

height of 3.5 inches. the height of the prism is 5 inches. fine the volume of the prism.

1 answer:

mrs_skeptik [129]4 years ago

5 0

Answer:70

Step-by-step explanation:

You multiply all three numbers.

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what is 13 approximated to the nearest tenth? Answers: A. 3.5 B. 3.6 C. 3.7 D. 3.8

Inga [223]

$\sqrt{13}\approx3.605551....\approx3.6\\\\Answer:B$

$A.\ 3.5^2=12.25\\\\B.\ 3.6^2=12.96\\\\C.\ 3.7^2=13.96\\\\D.\ 3.8^2=14.44\\\\nearest\ 13\ is\ 12.96=3.6^2$

$Answer:3.6\ (B)$

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3 years ago

How do you put g>2.75 on an number line. please help me asap

Galina-37 [17]

↓2.75 g↓

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3 years ago

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AleksAgata [21]

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3 years ago

Please help me I am having a hard time with this activity

zysi [14]

Answer:

Step-by-step explanation:

b.

$\frac{a^2+6a+9}{a^2-9} *\frac{3a-9}{a+3} \\=\frac{a^2+2*a*3+3^2}{a^2-3^2} *\frac{3(a-3)}{a+3} \\=\frac{(a+3)^2}{(a+3)(a-3)} *\frac{3(a-3)}{a+3} \\=\frac{3(a+3)^2}{(a+3)^2} \\=3$

d.

$\frac{3x^2-6x}{3x+1} *\frac{x+3x^2}{x^2-4x+4} \\=\frac{3x(x-2)}{3x+1} *\frac{x(1+3x)}{x^2-2x-2x+4} \\=\frac{3x(x-2)}{3x+1} *\frac{x(1+3x)}{x(x-2)-2(x-2)} \\=\frac{3x(x-2)}{3x+1} *\frac{x(1+3x)}{(x-2)(x-2) } \\=\frac{3x^2}{x-2)}$

e.

$\frac{2x^2-10x+12}{x^2-4} *\frac{2+x}{3-x} \\=\frac{2[x^2-5x+6]}{x^2-2^2} *\frac{2+x}{-(-3+x)} \\=\frac{2[x^2-2x-3x+6]}{(x+2)(x-2)} *\frac{x+2}{-(x-3)} \\=\frac{2[x(x-2)-3(x-2)]}{(x+2)(x-2)} *\frac{x+2}{-(x-3)} \\=\frac{2(x-2)(x-3)}{(x+2)(x-2)} *\frac{x+2}{-(x-3)} \\=\frac{2}{-1} \\=-2$

k.

$\frac{6x^2-11x-10}{6x^2-5x-6} *\frac{6-4x}{25-20x+4x^2} \\=\frac{6x^2-15x+4x-10}{6x^2-9x+4x-6} *\frac{-4x+6}{4x^2-10x-10x+25} \\=\frac{3x(2x-5)+2(2x-5)}{3x(2x-3)+2(2x-3) } *\frac{-2(2x-3)}{2x(2x-5)-5(2x-5)} \\=\frac{(2x-5)(3x+2)}{(2x-3)(3x+2)} *\frac{-2(2x-3)}{(2x-5)(2x-5)} \\=\frac{-2}{2x-5}$

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3 years ago

Ben earns $12,800 a year. About 15% is taken out for taxes.How much is taken out for taxes?

Gnoma [55]

$1920 is taken out for taxes

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3 years ago