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2 years ago

What is the value of each expression? 7/8 + 4/8 : 17/25 - 9/25 : 63/46 - 81/46 :

Mathematics

1 answer:

iragen [17]2 years ago

5 0

Answer: 7/8 + 4/8 = Exact form- 11/8

Decimal form- 1.375

17/25 - 9/25 = Exact form- 8/25

Decimal form- 0.32

63/46 - 81/46 = Exact form- -9/23

Step-by-step explanation: Hope this helped.

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Brian correctly use a method of completing the square to solve the equation X a 2nd plus 7X -11 equals zero Brian‘s first step w

ArbitrLikvidat [17]

Answer:

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Step-by-step explanation:

Brain correctly use a method of completing the square to solve the equation:

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His First Step is to: Take the Constant Term to the Right Hand Side

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The Next Step Would be to:

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In this case, the Coefficient of x = 7

Divided by 2 = $\frac{7}{2}$

Squaring It, we have: $(\frac{7}{2})^{2}$

It is this number $(\frac{7}{2})^{2}$ that is added to both sides in the manner below:

$x^2+7x+(\frac{7}{2})^{2}=11+(\frac{7}{2})^{2}$

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