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lions [1.4K]
3 years ago
11

X^2-18x-6. complete the square ​

Mathematics
2 answers:
USPshnik [31]3 years ago
8 0

Answer:

(x - 9)² = 87

Step-by-step explanation:

Move the -6 to the other side

x² - 18x = 6

The number you add to each side is (b/2)²

(b/2)² is (-18/2)² = 81

x² - 18x + 81 = 87

(x - 9)² = 87

vlabodo [156]3 years ago
6 0

Answer:

(x-9)^2-87

Step-by-step explanation:

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Use the compound interest formulas A = Pert and A = P(1+r/n)^nt to solve.
levacccp [35]
A = Pe^rt
P = 11,000 ; r = 6.25% ; t = 10 ; e = 2.7183 approximate

A = 11,000 e ^(0.0625 *10)
A = 11,000 e ^0.625
A = 11,000 * 2.7183^0.625
A = 11,000 * 1.868
A = 20,548

A = P (1 + r/n)^nt
P = 11,000 ; r = 6.3% ; n = 2 ; t = 10

A = 11,000 (1 + 0.063/2)^2*10
A = 11,000 (1 + 0.0315)^20
A = 11,000 (1.0315)^20
A = 11,000 (1.859)
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<span>$11,000 invested at 6.25% compounded continuously over 10 years yields the greater return. </span>
3 0
3 years ago
Can someone write an explicit formula for the following sequence for me?:
Phoenix [80]

Answer:

a_n=10-7n

Step-by-step explanation:

The explicit form for an arithmetic sequence is:

a_n=a_1+d(n-1)

where a_1 is the first term and [ted]d[/tex] is the common difference.

The given sequence is arithmetic because term-previous term is the same per each pair of term and previous term.

That is the following holds:

-4-3=-11-(-4)=-18-(-11)

All of these differences are equal to -7, the common difference.

So let's fill in the explicit form:

a_n=3+-7(n-1)

or

a_n=3-7(n-1)

or

a_n=3-7n+7

or

a_n=10-7n

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4 years ago
HELP PLEASE!! Which of the following best describes the graph below? A. it us a one-to-one function B. it us a function but it i
masha68 [24]

The correct statement regarding the function y = \sqrt{x + 2} is given by:

A. it us a one-to-one function.

<h3>What is the missing information?</h3>

This problem is incomplete, but researching it on the internet, the function used is y = \sqrt{x + 2}.

<h3>Is it a function?</h3>

For y = \sqrt{x + 2}, each value of x is associated with only one value of y, that is, the graph has <u>no vertically aligned points</u>, hence it is a function.

<h3>Is the function one-to-one?</h3>

Each value of y is also associated with only one value of x, that is, the graph has <u>no horizontally aligned points</u>, hence it is a one-to-one function, and the correct statement is given by:

A. it us a one-to-one function.

More can be learned about functions at brainly.com/question/24808124

#SPJ1

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2 years ago
devon records 4 hours of reality shows on her dvr she records comedy shows 3/8 of that amount of time. Devon watches all the rea
scZoUnD [109]
Devon records 3/8 of 4 hours for comedy shows, which is 90 mins worth (1 hour and a half).

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4 years ago
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2/6 over 2/5 is witch one &gt;&lt; or =
uranmaximum [27]

Answer:

It would be 2/6 < 2/5.

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3 years ago
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