2 years ago

Which inequality is true? ОА. 2. — 1<5 ОВ. 3л > 9 ос. п+8 < 11 OD. 5 > 2

Mathematics

1 answer:

matrenka [14]2 years ago

6 0

N is the answer to this question

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Combine as indicated by the signs. 4/ y^2-9 + 5/y+3

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$\frac{4}{y^{2}-9 } + \frac{5}{y+3} = \frac{4}{(y-3)(y+3) } + \frac{5}{y+3}= \frac{4}{(y-3)(y+3) } + \frac{5(y-3)}{(y-3)(y+3)}=
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2 years ago

What is the solution of 5y + 1=31

gayaneshka [121]

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Step-by-step explanation:

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2 years ago

What is the surface area of a cone that has a radius of 8 feet and a slant height of 12 feet? (Use 3.14 for π.)

kodGreya [7K]

Answer:

Surface area of cone is $502.4\ ft^2$

Step-by-step explanation:

Given:

radius of a cone (r) = 8 feet

slant height of cone (l) = 12 feet

We need to find the surface area of cone.

Total surface area of cone = Area of circle $+$ Area of curved surface

Now we know that,

Area of circle = $\pi r^2$

Area of curved surface = $\pi rl$

Hence Total surface area of cone = $\pi r^2+\pi rl=\pi r(r+l) = 3.14 \times 8 (8+12)=3.14\times8\times20= 502.4 \ ft^2$

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2 years ago