3 years ago

What is the value of x??

Mathematics

1 answer:

Lerok [7]3 years ago

3 0

Answer:

Step-by-step explanation:

3x + 12 + x = 180

4x + 12 = 180

4x = 168

x = 42

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Find the range of this function. what you see is a parabola

adelina 88 [10]

Answer:

$y\geq -6$

Step-by-step explanation:

we know that

The graph of the figure represent a vertical parabola open upward

The vertex represent a minimum

The vertex of the quadratic equation is the point (h,k)

The range of the quadratic equation is the interval for y [k,∞)

$y\geq k$

Looking at the graph

The vertex is the point (0,-6)

therefore

The range is the interval [-6,∞)

$y\geq -6$

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4 years ago

How do I solve 5(11x - 5) = 85

Gala2k [10]

5(11x-5)=85
55x-25=85
+25 +25
55x=110
---- -----
55 55
x = 2

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3 years ago

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Ahat [919]

Answer:

The area is 3.14

Step-by-step explanation:

Area of a circle is pi(radius)^2

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3 years ago

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You have one-half of an energy drink left. If you drink one-half of that, how much of your energy drink do you have left?

xxTIMURxx [149]

Answer:

1/4 of the energy drink would be left.

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Identify the zeros of the function f(x) =2x^2 − 2x + 13 using the Quadratic Formula. SHOW WORK PLEASE!! I NEED HELP!!

babunello [35]

Answer:

$x=\frac{1+5i} {2}$ and $x=\frac{1-5i} {2}$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$f(x)=2x^{2} -2x+13$

Equate the function to zero

$2x^{2} -2x+13=0$

$a=2\\b=-2\\c=13$

substitute in the formula

$x=\frac{-(-2)\pm\sqrt{-2^{2}-4(2)(13)}} {2(2)}$

$x=\frac{2\pm\sqrt{-100}} {4}$

Remember that

$i=\sqrt{-1}$

$x=\frac{2\pm10i} {4}$

Simplify

$x=\frac{1\pm5i} {2}$

therefore

$x=\frac{1+5i} {2}$ and $x=\frac{1-5i} {2}$

7 0

3 years ago