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Bezzdna [24]
3 years ago
12

HELPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Hoochie [10]3 years ago
7 0

Answer:

r²h(pie)+r³ over 3

Step-by-step explanation:

Call the radius r and the height of the cone h.  The formula for the volume of a cone is r^2*h*pi/3, and the formula for the volume of a sphere is 4r^3/3, so half of a sphere has volume 2r^3/3.  Adding these, our answer is: ^^

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The product of 4 and a number f decreased by 2 is 15
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Answer:  The number is:  "2 " .

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Step-by-step explanation:

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Write the expression; which is an equation, as follows:

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    " 4x − 12 = 2(-x) " ;  in which "x" represents "the number for which we shall                                       solve" .

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Note:  

If the "number" = "x" ;  the "opposite of the number"  =  " -x " ;

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Rewrite as:  " 4x − 12 = -2x " ;

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    →  Add "12" ; & add "2x" ; to EACH SIDE of the equation:

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          to get:    6x  = 12  ;

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Now, divide each side of the equation by "6" ;

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                        6x / 6  =  12 / 6 ;

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Let us check our answer, by plugging in "2" for "x" in our original equation:

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