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kramer
3 years ago
11

HELP ASAP PLEASE AND SHOW WORK!!! Write the vertex form of the following equation. y= x^2+6x-5

Mathematics
1 answer:
valkas [14]3 years ago
4 0

Answer:

<h3>            \boxed{\bold{y=(x+3)^2-14}}</h3>

Step-by-step explanation:

y= x²+6x-5

completing the square: <em>  a²+2ab+b²</em> <em>= (a+b)²</em>  where <em>a²=x² </em>(so <em>a=x</em>) and <em>2ab=6x </em> (so <em>b</em> would be 3):

y=x^2+6x-5\\\\y=\underline{x^2+2\cdot x\cdot3+3^2}-3^2-5\\\\y=(x+3)^2-9-5\\\\\underline{y=(x+3)^2-14}\\\\\\vertex:\ \ (-3,\,-14)

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The larger of two numbers is four more than the smaller number.If the sum of the numbers is 61,find the numbers
sergij07 [2.7K]

Answer:

<u>28.5 and 32.5</u>

Step-by-step explanation:

<em>create an equation to solve:</em>

x + (x+4) =61

2x + 4 = 61 combine like terms

2x = 57 subtract 4 from both sides

x = 28.5 divide 2 from both sides

28.5 is the smaller number

the larger number is 4 more so:

28.5 + 4 = 32.5

32.5 is the larger number

check your work:

28.5 + 32.5 = 61

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3 years ago
3s+2p=85.50 4s+2p=123
Gala2k [10]

Answer:s=10.50 and p=27

Step-by-step explanation:

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3 years ago
An alarm system requires a 7-digit code using the digits 0 through 9. Each digit may only be used once in the code. How many dif
maks197457 [2]

<u>10M </u><u>different </u><u>codes </u><u>are possible.</u>

Probability Definition in Math-

  • Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e. how likely they are to happen, using it.
  • Four perspectives on probability are commonly used: Classical, Empirical, Subjective, and Axiomatic.
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  • It’s simple. there are 7 digits, so that would mean you start with 0,000,000 and end with 9,999,999.
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Learn more about probability

brainly.com/question/11234923

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2 years ago
Bob can draw 14 shapes in 7 minutes.how long does it take bob to draw 28 shapes at the same rate
miss Akunina [59]
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3 years ago
Read 2 more answers
what is the smallest of three consecutive integers i the sum of the smaller two integers is two more than seven times the larges
NNADVOKAT [17]

Answer:

The numbers that meet these conditions are -3, -2 and -1.

This means that the wording of the question is somewhat ambiguous:

The <em>lowest</em> of the three numbers is -3.

The <em>smallest</em> however is -1.

You may need clarification on which of those is being asked for.

Step-by-step explanation:

Let's call those numbers a, b and c, with a the smallest and c the largest. We're told two key things here:

1) The sum of the smaller two integers is two more than seven times the largest integer.  In other words a + b = 7c + 2

2) We're looking for three consecutive integers, which means that we can define them with a single variable.  If the smallest one is a, then the others are a + 1 and a + 2.

We can take those and put them together, giving us the equation:

a + (a + 1) =  7(a + 2) + 2

Which we can then solve for a:

a + (a + 1) =  7(a + 2) + 2

2a + 1 = 7a + 14 + 2

2a - 7a = 14 + 2 - 1

-5a = 15

a = -3

Since a is -3 and also the smallest, we can then say that the numbers are -3, -2 and -1.

3 0
3 years ago
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