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kakasveta [241]
2 years ago
11

A4(3a2 - 2a + 1) What’s the product

Mathematics
1 answer:
guajiro [1.7K]2 years ago
6 0

The answer is

3a^6 - 2a^5 + a^4

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The area of a rectangular wall of a barn is 42 square feet. Its length is 8 feet longer than twice its width. Find the length an
Furkat [3]

Answer:

The answer to your question is: length = 14 ft; width = 3 ft

Step-by-step explanation:

Data

Area = 42 ft²

length = 8 + 2w

w = width = ?

length = ?

Formula

Area = length x width = l x w

Substitution

                     42 = (2w + 8)w

                     42 = 2w² + 8w

                     2w² + 8w - 42 = 0

                                                                  Dividing by 2

                      w² + 4w - 21 = 0                 Factorize

                     (w + 7) (w - 3) = 0

                     w1 = -7                      w2 = 3

     It's not possible to have negative widths

So the answer is w = 3 ft

      length = 2(3) + 8

      length = 6 + 8

      length = 14 ft

               

8 0
3 years ago
F(x) = 5x^2 - 8x - 5 what is the value of f(10) ?
Dominik [7]
<span>f '(x) = 2(3x2<span> + 5) + 6x(2x - 1)</span></span><span>= 6x2<span> + 10 + 12x</span>2<span> - 6x</span></span><span>= 18x2<span> - 6x + 10</span></span>
8 0
3 years ago
Help on this please.
Komok [63]

Answer:

80 or 81

Step-by-step explanation:

6 0
2 years ago
Find the other perimeter
damaskus [11]

Answer:

28.56

Step-by-step explanation:

6+10+ (3.14×8)/2

= 16 + 12.56

= 28.56 ft

7 0
2 years ago
Find the missing factor x^2-11x+18=(x-2)( )
tia_tia [17]
I'd use synthetic div. here, with 2 as my divisor:

      ________________
2   /   1    -11    18
                  2   -18
     ----------------------------
         1     -9      0

Note that the coefficients of the missing factor are given here and are 1 and -9.  Thus, (x-9) is the missing factor.
4 0
3 years ago
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