3 years ago

What is the value is missing from the equation ?

Mathematics

1 answer:

mr Goodwill [35]3 years ago

3 0

Answer:

Step-by-step explanation:

slope formula: second y minus first y over second x minus first x. then simplify

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3 years ago

List all factor for each number 100. 65. 70

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The factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50, and 100 .

The factors of 65 are 1, 5, 13, and 65 .

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3 years ago

Which pair of complex factors results in a real-number product?

Crank

we will proceed to solve each case to determine the solution of the problem

we know that

$i^{2} =-1$

case A. $15*(-15i)$

$15*(-15i)=-225i$

The result of case A is not a real number product

case B. $3i*(1-3i)$

$3i*(1-3i)=3i*(1)-(3i)*(3i)\\=3i-9i^{2}\\=3i-9*(-1)\\=3i+9$

The result of case B is not a real number product

case C. $(8+20i)*(-8-20i)$

$(8+20i)*(-8-20i)=8*(-8)+8*(-20i)+20i*(-8)-20i*(20i)\\=-64-160i-160i-400i^{2}\\=-64-320i-400*(-1)\\=-64-320i+400\\=336-320i$

The result of case C is not a real number product

case D. $(4+7i)*(4-7i)$

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The result of case D is a real number product

therefore

the answer is the option

$(4+7i)*(4-7i)$

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