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aliina [53]
2 years ago
9

Three consecutive numbers when added make together 21?

Mathematics
2 answers:
Ulleksa [173]2 years ago
4 0
Consecutive numbers go in order. 7 + 8 + 6 = 21.
Paraphin [41]2 years ago
4 0
Consecutive means in numerical order like 1+2+3=6. In this case, it is 6+7+8 that equals 21.
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sukhopar [10]

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multiple choice is worth 2

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6 0
2 years ago
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kap26 [50]

Answer:

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The surface area of a cone (A) is given by this formula:

A = \pi \cdot r^{2} + 2\pi\cdot s

Where:

r - Base radius of the cone, measured in inches.

s - Slant height, measured in inches.

In addition, the slant height is calculated by means of the Pythagorean Theorem:

s = \sqrt{r^{2}+h^{2}}

Where h is the altitude of the cone, measured in inches. If r >> h, then:

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Roots can be found by the Quadratic Formula:

r_{1,2} = \frac{-2\pi \pm \sqrt{4\pi^{2}-4\pi\cdot (-1885.7143)}}{2\pi}

r_{1,2} \approx -1\,in \pm 24.521\,in

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