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eduard
3 years ago
14

Which value must be added to the expression x2 + 16x to make it a perfect-square trinomial?

Mathematics
2 answers:
sdas [7]3 years ago
8 0
<span>Before getting to the actual answer, one must be aware of the way the answer is found. The one and only thing that needs to be done in this case is finding the half of 16 and then squaring it. This obviously gives the result as 64. he correct option among all the options that are given in the question is the third option or option "C". </span>
8090 [49]3 years ago
4 0

Answer:

\text{64 must be added to the expression }x^2 + 16x\text{ to make it a perfect-square trinomial}

Step-by-step explanation:

Given the expression

x^2+16x

we have to tell which value must be added to the above expression to make it a perfect-square trinomial.

Expression: x^2+16x

By completing the square method,

The square of half of the coefficient of x must be added , we get

x^2+16x+64

x^2+8x+8x+64

x(x+8)+8(x+8)

(x+8)^2

which is a perfect square.

\text{Hence, 64 must be added to the expression }x^2 + 16x\text{ to make it a perfect-square trinomial}

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Step-by-step explanation:

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3 years ago
What value of n solves the equation 3^n=1/81 ?<br> A. –243 <br> B. –27 <br> C. –4 <br> D. 4
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5 0
4 years ago
A. Determine whether the sequence is an addiction pattern, a multiplication pattern, or neither.
oksian1 [2.3K]

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3 0
4 years ago
Can someone help me solve this Please
Dafna1 [17]

9514 1404 393

Answer:

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Step-by-step explanation:

To find the initial amount, put 0 where t is in the formula and do the arithmetic.

  A(0) = 523(1/2)^0 = 523(1) = 523

The initial amount is 523 grams.

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About 52 grams will remain after 100 years.

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