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vova2212 [387]
2 years ago
11

Does someone knows how to solve this. Step by step? Completing the Square: x^2-6x=15​ ​

Mathematics
2 answers:
butalik [34]2 years ago
7 0
Ibubbiubj bihbhubyibiyvyuvuyffiyfaresrcv
JulsSmile [24]2 years ago
3 0

Answer:

x= 7.899 when rounded

Step-by-step explanation:

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X + 2x +17=25 I need the answer and need do you know how to check if it's right ​
Andre45 [30]

Answer:

x=8/3

Step-by-step explanation:

x+2x+17=25

3x+17=25

3x=8

x=8/3

7 0
3 years ago
Read 2 more answers
Which polynomial identity will prove that 19 = 27 − 8?
3241004551 [841]
The answer is Difference of Cubes.

Difference of cubes is a³ - b³.
27 can be written as 3³ (= 3 × 3 × 3 = 27). So, a = 3.
8 can be written as 2³ (= 2 × 2 × 2 = 8). So, b = 2.

Difference of cubes can be expressed as:
       a³ - b³ = (a - b)(a² + ab + b²)
⇒   3³ - 2³ = (3 - 2)(3² + 3×2 + 2²) = 1 × (9 + 6 + 4) = 1 × 19 = 19
⇒  27 -  8  = 19


5 0
3 years ago
Which cube root function is always decreasing as x increases?
kvasek [131]
The answer is O f(x) =-35x+5
5 0
3 years ago
Use the discriminant to determine the nature of the roots of the following questions
soldier1979 [14.2K]

Answer:

the function has two distinct real roots.

Step-by-step explanation:

D=b²-4ac    

D<0 No real roots

D=0 One real root

D>0 Two distinct real root.

    (-5)²-4*1*-3

    25+12

    37

Since D is > than 0, the function has two distinct real roots.

6 0
3 years ago
Describe what a cylinder is. What are the shapes that make up the different sides?
EastWind [94]
A cylinder is made up of 1 rectangle which is folded into a circular shape. It also has 2 circles, one at the top, and one at the bottom.
4 0
3 years ago
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