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Mekhanik [1.2K]
2 years ago
7

The variable k represents a value in the set (-2,-4, -6, -8}.

Mathematics
1 answer:
Stells [14]2 years ago
5 0

Answer:

Added thanks lol :)

Step-by-step explanation:

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Write the standard form of the quadratic equation modeled by the points shown in the table below.
Andre45 [30]
We know that

The Standard Form<span> of a </span>Quadratic Equation<span> is
</span> ax²<span> + bx + c = 0
</span>
then 
for x=0    y=-6
 a*0² + b*0 + c = -6---------> c=-6

for x=1    y=2
 a*1² + b*1 -6 = 2---------> a+b=8---------> a=8-b---------> equation 1

for x=3    y=-0
 a*3² + b*3 -6 = 0---------> 9a+3b=6---------> equation 2

<span>substituting 1 in 2
9*(8-b)+3b=6------> 72-9b+3b=6---------> 6b=66--------> b=11
a=8-11-------> a=-3
so
a=-3
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</span>Standard Form of a Quadratic Equation is
 -3x² + 11x - 6 = 0
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the answer is
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6 0
3 years ago
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One canned juice is 15% orange juice another 10% orange juice. How many liters of each should be mixed together in order to get
Delicious77 [7]
<span>Equation:
0.15x + 0.10(5-x) = 0.11*5
---
Multiply thru by 100:
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---
5x = 5
x = 1 liter (amt. 15% oj needed)
----
5-x = 4 liters (amt of 10% oj needed)
======</span>
3 0
2 years ago
Examine the diagram, where BD is tangent to circle M at point D, and BA is secant to the same circle at points E and A.
Stella [2.4K]

Answer:

19 = x

Step-by-step explanation:

The square of the tangent segment = The product of (whole secant segment) (the outside part of the secant segment)

BD²= (BA)(BE)        

8² = (4 + x - 7) (4)             BA = BE + EB

8² = (x - 3)(4)

64 = 4x - 12

64 + 12 = 4x

76 = 4x

19 = x

3 0
2 years ago
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