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ankoles [38]
3 years ago
13

If i have a 86% in history what will my grade be if i got an 95% on the final

Mathematics
1 answer:
Gnoma [55]3 years ago
4 0
Your grade will most likely be an A
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40=3x+x^2<br><br> How do I find the answer to this
tamaranim1 [39]

Answer:

x = -8, x = 5

Step-by-step explanation:

This can be solved using Factorization method:

40 = 3x +  {x}^{2}  \\  \\  \implies \:  {x}^{2}  + 3x - 40 = 0 \\  \\   \implies \:  {x}^{2}  + 8x  - 5x- 40 = 0 \\  \\  \implies \:  x({x} + 8)  - 5(x + 8) = 0 \\  \\ \implies \:  ({x} + 8) (x - 5)  = 0 \\  \\ \implies \:  ({x} + 8) = 0 \:  \: or \:  \:  (x - 5)  = 0 \\  \\ \implies \:  x =  - 8 \:  \: or \:  \: x = 5 \\  \\ x =  - 8, \:  \: 5

8 0
2 years ago
Which point on the number line indicates a number that is less than 9.1 and greater than 6.5
Dahasolnce [82]

Answer:


Step-by-step explanation:


8 0
3 years ago
Write an expression to represent: Four less than the product of one and a number xxx
rusak2 [61]

Answer:

xxx-4

Step-by-step explanation:

(1×xxx)-4

yietisyksykd

4 0
3 years ago
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What's the digit in the tenths place ​
Darya [45]
Tenths is the digit in the tenths place. Like 0.1 being 1 tenth.
5 0
3 years ago
Find the axis of symmetry of the graph of the function. (5 points) f(x) = 3x2 + 12x + 9
Kryger [21]

Considering the definition of axis of symmetry, the axis of symmetry of the graph of the function f(x) = 3x²+ 12x+ 9 is x=-2.

<h3>Axis of symmetry</h3>

An axis of symmetry is an imaginary reference line that, when dividing any shape into two parts, its opposite points are equidistant from each other, that is, they are symmetrical.

In other words, the axis of symmetry is a vertical line that divides the parabola into two congruent halves.

The axis of symmetry is the line perpendicular to the "x" axis that contains the vertex of the function, that is, it always passes through the vertex of the parabola. So the x-coordinate of the vertex is the equation of the axis of symmetry.

That is, in a quadratic function that has the form:

f(x)= ax² + bx + c

the axis of symmetry is a vertical line and it is defined as x=\frac{-b}{2a}.

<h3>Axis of symmetry of f(x) = 3x² + 12x + 9</h3>

In this case, you know:

  • a= 3
  • b=12
  • c=9

Replacing in the definition of axis of symmetry:

x=\frac{-12}{2x3}

Solving:

x=\frac{-12}{6}

<u><em>x= -2</em></u>

Finally, the axis of symmetry of the graph of the function f(x) = 3x²+ 12x+ 9 is x=-2.

Learn more about axis of symmetry:

brainly.com/question/24737967

brainly.com/question/10473291

#SPJ1

3 0
2 years ago
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