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aleksandrvk [35]
2 years ago
9

1. the prices for 6 different jerseys are

Mathematics
1 answer:
Musya8 [376]2 years ago
5 0

Answer:

Step-by-step explanation:

8

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Complete the square to find the minimum value of the expression 4x2 + 8x + 23.
Tcecarenko [31]
So you need to come up with a perfect square that works for the x coefficients.
like.. (2x + 2)^2
(2x+2)(2x+2) = 4x^2 + 8x + 4
Compare this to the equation given. Our perfect square has +4 instead of +23. The difference is: 23 - 4 = 19

I'm going to assume the given equation equals zero..

So, If we add subtract 19 from both sides of the equation we get the perfect square.

4x^2 + 8x + 23 - 19 = 0 - 19
4x^2 + 8x + 4 = - 19
complete the square and move 19 over..
(2x+2)^2 + 19 = 0
factor the 2 out becomes 2^2 = 4
ANSWER: 4(x+1)^2 + 19 = 0

for a short cut, the standard equation
ax^2 + bx + c = 0 becomes a(x - h)^2 + k = 0
Where "a, b, c" are the same and ..
h = -b/(2a)
k = c - b^2/(4a)

Vertex = (h, k)
this will be a minimum point when "a" is positive upward facing parabola and a maximum point when "a" is negative downward facing parabola.


3 0
3 years ago
-3 + 5n &gt; -13 <br> i need help on this someone please help
Butoxors [25]

Answer:

n > -2

Step-by-step explanation:

5n > -10

n > -2

8 0
3 years ago
Read 2 more answers
In two or more complete sentences, describe the steps necessary in completing the following sum. In your final answer, include t
tiny-mole [99]

Answer:

First, you would need to find a common denominator for the two, in this case it would be 6 which would make the equation 3/6 + 4/6=7/6. Then in order to make the answer a mixed number you would need to divide the numerator into the demonanator,  write down the whole number answer (6 will go into 7 ONE time) then write down the "leftovers". The final answer would be 1 1/6

(i hope this helps! im not the best at explaining)

6 0
3 years ago
ellum...........................................11..............................................................................
Naddika [18.5K]

Answer:

heyyyyy !!!!! whats the question????? ......

Step-by-step explanation:

8 0
3 years ago
Which of these is a step in constructing an inscribed equilateral triangle using technology?
lyudmila [28]
I think that the answer is B. I tried to read more about the question to understand it more but got nothing out of it. 
5 0
3 years ago
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