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lilavasa [31]
3 years ago
15

Can you please help me​

Mathematics
1 answer:
shepuryov [24]3 years ago
6 0

Answer:

i would say none of the above can i get brainlest

Step-by-step explanation:

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Show that 2x +1 is a factor of 2x3 +5x2+4x+1 and factories completely
larisa [96]

\text{According to the factor theorem, if f(b) = 0, then x-b is a factor of f(x).}\\\\\text{Given that,}\\\\f(x) = 2x^3 +5x^2 +4x +1 \\\\f\left(-\dfrac 12 \right) = 2\left( - \dfrac 12 \right)^3 +5 \left( - \dfrac 12 \right)^2 +4 \left( - \dfrac 12 \right) +1 \\\\\\~~~~~~~~~~~~=-2 \cdot \dfrac 18 + 5 \cdot \dfrac 14 -2 +1 \\\\\\~~~~~~~~~~~=\dfrac 54 -\dfrac14 -1\\\\\\~~~~~~~~~~~=\dfrac 44 -1 \\\\\\~~~~~~~~~~~=1-1\\\\\\~~~~~~~~~~~=0\\\\\text{So,}~ 2x +1 ~ \text{is a factor of f(x).}

\text{Now,}\\\\f(x) = 2x^3 +5x^2 +4x +1 \\\\~~~~~~=2x^3+x^2 +2x^2 +2x +2x+1\\\\~~~~~~=x^2(2x+1)  +2x(2x+1) +  (2x+1)\\\\~~~~~~=(2x+1)(x^2 +2x +1)\\\\~~~~~~=(2x+1)(x+1)^2

3 0
2 years ago
Need helpppppp!!!!!!
uysha [10]

These are 45-45-90 triangles, whose hypotenuses are \sqrt{2} times their legs. Given a side of length 1, for example, the diagonal length is \sqrt{2}\approx 1.4142. The first few ordered pairs (x,y) in the table would be (1,1.41),(2,2.83),(3,4.24),(4,5.66),...

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3 years ago
The length of the rectangular field is 18cm, and the width is 24cm,
natali 33 [55]

Step-by-step explanation:

Just do this

2(L+B)

2(18+24)

2×42

84 Ans.

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2 years ago
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babunello [35]

Answer:

i think the answer is -13

7 0
2 years ago
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The price of a skateboard is reduced by 25%. The original price was $120. Find the new price.
8_murik_8 [283]

New price = <u>90 dollars</u>

<u></u>

25% of 120 = 30

Price is reduced 25% from 120 so,

120 - 30 = 90

Amount of discount = 30

8 0
2 years ago
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