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Nataly [62]
2 years ago
6

Write x^2-4x+7 in the form (x+a)^2+b where a and b are constants.

Mathematics
1 answer:
Novosadov [1.4K]2 years ago
8 0

Answer:

wiat

Step-by-step explanation:

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Find the domain over which the function y = x + 6x is monotonic increasing.
iragen [17]

Answer:

x > -3

\sf (-3, \infty)

Step-by-step explanation:

Domain: input values (x-values)

Monotonic increasing:  always increasing.  
A function is increasing when its graph rises from left to right.

The graph of a quadratic function is a parabola.  If the leading term is positive, the parabola opens upwards.  The domain over which the function is increasing for a parabola that opens upwards is values greater than the x-value of the vertex.

<u>Vertex</u>

Standard form of quadratic equation:  \sf y=ax^2+bx+c

\textsf{x-value of vertex}=\sf -\dfrac{b}{2a}

Given function:

\sf y=x^2+6x

Therefore, x-value of function's vertex:

\sf \implies x= -\dfrac{6}{2}=-3

<u>Final Solution</u>

The function is increasing when x > -3

\sf (-3, \infty)

4 0
2 years ago
What is the solution?
galina1969 [7]

Answer:

y=60 x=16

Step-by-step explanation:

the triangles are identical so 92+y=3y-28 so solve that for y:

                                                     -y      +28

                                                  120=2y                                                                            .                                                  /2      /2

                                                  60 = y so y=60

and 6x+2=3x+50 and solve that for x: which gets x = 16

Then are you supposed to plug it in to the numerical equvilant to the angles and sides becuase if so:  B and E is 152, AC and DF are 98

Hope this helps and brainliest would be greatly appreciated! Thanks!

4 0
2 years ago
A chess player played 112 games.If he won40 what is the ratio of lost games to won games?
ycow [4]
If he won 40, then he lost 112-40 or 72 games. 
Ratio= lost/win
Ratio=72/40
72/40

Hope this helps :)
8 0
3 years ago
What is 7 × 10^7 in standard form​
dem82 [27]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

70,000,000

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

7 0
2 years ago
| 8 - 2x | &gt; (or equal to) x? find the absolute value
docker41 [41]
Solve for x by simplifying both sides of the equation, than isolating the variable.

x ≤ 8/3 or x ≥ 8 

5 0
3 years ago
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