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stich3 [128]
3 years ago
12

20 points :D

Mathematics
1 answer:
zepelin [54]3 years ago
8 0

Answer:

Step-by-step explanation:

A(1,13), B(5,8)

Let C be 7 units to the right of B:  C(5+7,8) = C(12,8)

Let D be 7 units to the right of A:  A(1+7,13) = A(8,13)

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Which is a good comparison of the estimated sum and the actual sum of 7 9/12 + 2 11/12
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9 + 1 2/3 = 10 2/3
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3 years ago
Which of the following would best be solved using factoring the difference of squares? 2² + 3x - 10 = 0 O 3r² + 12x = 8 2³ +52²
IgorC [24]

Given: Different equations

To Determine: Which would be best solved using difference of two squares

Solution

The factorization of a difference of two squares is given below

a^2-b^2=(a-b)(a+b)

Let us examine each of the given equation

\begin{gathered} x^2+3x-10=0 \\ x^2-2x+5x-10=0 \\ x(x-2)+5(x-2)=0 \\ (x-2)(x+5)=0 \end{gathered}\begin{gathered} 3x^2+12x=8 \\ 3x^2+12x-8=0 \end{gathered}\begin{gathered} x^3+5x^2-9x-45=0 \\ x^2(x+5)-9(x+5)=0 \\ (x+5)(x^2-9)=0 \\ x^2-9=x^2-3^2=(x+3)(x-3) \\ Therefore \\ (x+5)(x+3)(x-3)=0 \end{gathered}\begin{gathered} x^2-25=0 \\ x^2-5^2=0 \\ (x+5)(x-5)=0 \end{gathered}

From the above,

\begin{gathered} x^3+5x^2-9x-45=0 \\ AND \\ x^2-25=0 \end{gathered}

The two equation above can be solved by difference of two square, but the equation below is the easiest solved using differnce of two square

x² - 25 = 0

3 0
1 year ago
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Answer=4.24

Step-by-step explanation:

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Step-by-step explanation:

4 0
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4 0
4 years ago
Read 2 more answers
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