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leva [86]
3 years ago
13

1 divided by 7+3 root 2

Mathematics
1 answer:
slega [8]3 years ago
3 0

Answer:

7-3√2/31

Step-by-step explanation:

Rationalise it and you'll get your answer.

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A system of equations graphed on the grid<br> which systems of equations does the graph represent
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The answer is J. Y=x+4 and Y=-2x-4
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2. Abby found the axis of symmetry, x-coordinate, the vertex, and y-intercept
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Using quadratic function concepts, it is found that Abby made a mistake on the coordinates of the vertex, which are (-4,1).

----------------------

  • A quadratic function is defined by:

y(x) = ax^2 + bx + c

  • The y-intercept is given by point: (0, y(0))
  • The vertex is given by: (-\frac{b}{2a}, y(-\frac{b}{2a})).
  • The axis of symmetry is: x = -\frac{b}{2a}

----------------------

The function given is:

f(x) = -x^2 - 8x - 15

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  • f(0) = -0^2 - 8(0) - 15 = -15, thus, the y-intercept is (0, -15).

x_v = -\frac{b}{2a} = -\frac{(-8)}{2(-1)} = \frac{8}{-2} = -4

  • Thus, the <u>x-coordinate of the vertex</u> is x = -4, which is the same as the <u>axis of symmetry</u>.

f(-4) = -(-4)^2 - 8(-4) - 15 = 1

  • The vertex is given by: (-4,1).

A similar problem is given at brainly.com/question/14680175

8 0
3 years ago
Suppose that the number of cars manufactured at an automobile plant varies jointly as the number of workers and the time they wo
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<span>c = w * t*k

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let 


x = the number of party favors in each of the 27 boxes

y = the number of party favors in the last box


the total number of party favors is 1,552


27x + y = 1,552


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if we assume that y<x we conclude that there are 57 party favors in each of the 27 boxes and 13 party favors in the last box.



Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

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From january 1 to december 31 of the same year, how many times does the suns perpendicular ray cross the equator
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