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Alexandra [31]
4 years ago
11

I need some help in this question ​

Mathematics
1 answer:
soldier1979 [14.2K]4 years ago
5 0
X^2 + 2x - 15
factors into (x+5)(x-3)
set this equal to 0 and get that x=-5 and x=3
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I just need to find this data set out, please anyone?​
rewona [7]

Answer:

Ok so...

Mean: 68.76

Median: 72

Range: 85

Step-by-step explanation:

3 0
4 years ago
A gift box’s rectangular base has a perimeter of 92 centimeters. The length of the base is one more than twice the base’s width.
kozerog [31]
Assume that the length of the rectangle is "l" and that the width is "w".

We are given that: 
(1) The length is one more than twice the base. This means that:
l = 2w + 1 .......> equation I
(2) The perimeter is 92 cm. This means that:
92 = 2(l+w) ...........> equation II

Substitute with equation I in equation II to get the width as follows:
92 = 2(l+w)
92 = 2(2w+1+w)
92/2 = 3w + 1
46 = 3w + 1
3w = 46-1 = 45
w = 45/3
w = 15

Substitute with w in equation I to get the length as follows:
l = 2w + 1 
l = 2(15) + 1
l = 30 + 1 = 31

Based on the above calculations:
length of base = 31 cm
width of base = 15 cm
3 0
4 years ago
Which is not a true statement about the transformation below
hjlf

Step-by-step explanation:

<em>option</em><em> </em><em>D </em><em>is </em><em>correct</em><em>,</em>

<em>because</em><em> </em><em>the </em><em>orientation</em><em>/</em><em>postion</em><em> </em><em>of </em><em>the </em><em>vertices </em><em>does </em><em>got </em><em>changed.</em><em>.</em><em>.</em>

<em>that's</em><em> </em><em>why </em><em>it </em><em>is </em><em>not </em><em>true</em>

<em>hope </em><em>this </em><em>answer </em><em>helps </em><em>you </em><em>dear </em><em>take</em><em> </em><em>care</em>

3 0
3 years ago
Helpppppppppppppppppppppppppppppppppppppppppppp
ahrayia [7]

Answer:

I think it should be 24x^{2}

Step-by-step explanation:

When the question said area of the cube, I think it was supposed to be surface area, which would 6a^{2} where a is the length of one edge. Given that the length of one edge is 2x, we would plug in 2x to the equation to get6*(2x)^{2} which would become 24x^{2}.

8 0
2 years ago
Nathan has a sculpture in the shape of a pyramid. The height of the sculpture is 3 centimeters less than the side length,x,of it
Eduardwww [97]

Answer:

side length of sculpture = 9 cm

height of sculpture = 6cm

Step-by-step explanation:

Given that,

volume of sculpture = 162cm³

side length of sculpture = x

height of sculpture = x-3

formula for volume of sculpture

<h3>V=1/3 a²h</h3>

by putting values, the equation can be used to find the length of the sculpture’s base

162 = 1/3 (x)² (x-3)

162(3) =  (x)² (x-3)

486 = x²(x-3)

486 = x³ - 3x²

x³ - 3x² - 486 = 0

x = 9 <em>(using a graph tool / calculator equation mode)</em>

side length of sculpture = 9 cm

height of sculpture = 9 - 3

                                 = 6cm

7 0
3 years ago
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