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anastassius [24]
3 years ago
8

Describe the simplest way to find the total surface area of a cube. Pleas hurry help

Mathematics
1 answer:
ZanzabumX [31]3 years ago
7 0

The simplest way to find the surface area of a cube is to multiply the length and the width.

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The product of 3 consecutive even integers is equal to the cube of the first plus the square of the second plus twice the square
algol [13]

Answer:

6, 8 and 10  and  -2, 0, 2

There are two roots x = -2 and 6,    

but the since I don't believe 0 is an even number the answer is 6, 8 and 10

I was incorrect according to G0ggle zero is an even number so another answer is  -2, 0, 2

Step-by-step explanation:

read the question and convert the English to mathematics

x, y and z    even consecutive number

y = x+2

z = y+2 = x+4

and

xyz = x³ + y² + 2z²                                   substitiute x terms  in for y and z

x(x+2)(x+4)  = x³ + (x+2)² + 2(x+4)²           solve for x by graphing on DEMOS

                                                                 x = -2, 6  solved algebraically below

x = -2   y=0   z=2

x = 6    y=8   z=10

Checked both answers

xyz = x³ + y² + 2z²

-2(0)2 = -8 + 0 + 8                  when x = -2

   0   =  0

and

6(8)(10)  =  6³ + 8² +2(10)²      when x = 6

   480   =  216+64+200

             =  480

x(x+2)(x+4)  = x³ + (x+2)² + 2(x+4)²                           solved algebraically

(x²+2x)(x+4)   = x³ + x² +4x +4 + 2x² + 16x + 32

x³ + 6x² + 8x = x³ + x² +4x +4 + 2x² + 16x + 32

x³ + 6x² + 8x = x³ + 3x² + 20x + 36

      3x² - 12x - 36 = 0         factor out the 3

      3[x² - 4x - 12] = 0

       3(x+2)(x-6) = 0     x = -2 and -12

6 0
2 years ago
After reading a book for English class, 100 students were asked wether or not they enjoyed it. Nine twenty-fifths of the class d
tensa zangetsu [6.8K]

Answer: 64 students

Step-by-step explanation:

What you already know : Total students in English class= 100

Nine twenty-fifths of the class did not like the book.

 

Therefore, the number of students like the book =Total students- students did not like the book

=100-36=64 students.

5 0
3 years ago
Read 2 more answers
Is 3 pounds greater than less than or = to 50 ounces
elena-s [515]
Three pounds is less than 50 ounces. 3 pounds =48 ounces
8 0
3 years ago
The point (5, -2) is rotated 90° about the origin. Its image is
tigry1 [53]
<span>rotated 90° about the origin
(x,y) = (-y, x)

so </span><span>(5, -2) is rotated 90° about the origin = (2, 5)

answer
</span><span>b.(2, 5)</span>
7 0
2 years ago
Simplify 5(x – 2) + 11
Licemer1 [7]

Answer:

5x + 1

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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