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andre [41]
2 years ago
6

Find the values of a and b such that x^2-4x+9=(x+a)^2+b

Mathematics
1 answer:
m_a_m_a [10]2 years ago
6 0

Answer:

a = -2

b = 5

Step-by-step explanation:

We can identify the right side of the equation as completing the square. So, we simply complete the square for x² - 4x + 9 to find our answer,

Step 1: Isolate xs

x² - 4x = -9

Step 2: Complete the square

x² - 4x + 4 = -9 + 4

(x - 2)² = -5

Step 3: Move -5 over

(x - 2)² + 5

And we have our answer!

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80 pts!!! Plz answer me will mark as brainliest ​
nignag [31]

Answer:

Step-by-step explanation:

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6 0
3 years ago
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Michelle deposited $1,385 into a savings account with a simple interest rate of 2.89% per year. If Michelle does not touch the f
aniked [119]

Answer:

$1,665.19

Step-by-step explanation:

Interest=PRT/100 where P is the principal amount deposited by Michelle, R is the rate offered per year in terms of percentage, T is the period in years

Substituting P for $1385, T for 7 years, R for 2.89% we obtain interest as follows

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Balance after 7 years will be the sum of principal amount and interest gained

Balance=$1,385+$280.1855 =$1,665.1855

Rounding off to 2 decimal places

Balance=$1665.19

Therefore, Michelle's balance is $1,665.19

4 0
3 years ago
For f(x) = 2x+1 and g(x)=x*2-7 <br> find (f/g) (x).
Lostsunrise [7]
(f/g)(x) = f(x)/g(x)
So the answer is C
I hope it will help
7 0
2 years ago
Do the following form a right triangle?<br> 20, 25, 30<br> True<br> False
qaws [65]

Answer:

False

Step-by-step explanation:

20, 25, and 30 no hagas un triángulo rectángulo

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lesantik [10]

Answer:

$10

Step-by-step explanation:

300 divided by 30 is 10

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