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sergejj [24]
3 years ago
5

Point D is on segment BC, Segment BC measures Bx

Mathematics
1 answer:
Nostrana [21]3 years ago
5 0

Answer:

144 units

Step-by-step explanation:

3x + 8 + 4x + 10 = 8x

7x + 18 = 8x

8x - 7x = 18

x = 18

8x is length of BC

8 × 18 is length of BC

144 units

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Square root of -25 in imaginary form
Anvisha [2.4K]
Remember
√(mn)=(√m)(√n)

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√-1=i

√-25=(√-1)(√25)=(i)(5)
aswer is +/-5i
7 0
2 years ago
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Jordan has
attashe74 [19]
(1/3)/(5)= 1/3 * 1/5 = 1/15 of a chocolate bar each friend gets
7 0
3 years ago
Please help! Also, please show your work so I understand how to do this!!
Brilliant_brown [7]

Answer:

51

Step-by-step explanation:

5 students travelled by car , leaving 158 - 5 = 153 students to travel by bus.

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3 years ago
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What are the roots of this equation? x2-4x+9=0
zysi [14]

Considering the definition of zeros of a function, the zeros of the quadratic function f(x) = x² + 4x +9 do not exist.

<h3>Zeros of a function</h3>

The points where a polynomial function crosses the axis of the independent term (x) represent the so-called zeros of the function.

In summary, the roots or zeros of the quadratic function are those values ​​of x for which the expression is equal to 0. Graphically, the roots correspond to the abscissa of the points where the parabola intersects the x-axis.

In a quadratic function that has the form:

f(x)= ax² + bx + c

the zeros or roots are calculated by:

x1,x2=\frac{-b+-\sqrt{b^{2}-4ac } }{2a}

<h3>This case</h3>

The quadratic function is f(x) = x² + 4x +9

Being:

  • a= 1
  • b= 4
  • c= 9

the zeros or roots are calculated as:

x1=\frac{-4+\sqrt{4^{2}-4x1x9 } }{2x1}

x1=\frac{-4+\sqrt{16-36 } }{2x1}

x1=\frac{-4+\sqrt{-20 } }{2x1}

and

x2=\frac{-4-\sqrt{4^{2}-4x1x9 } }{2x1}

x2=\frac{-4-\sqrt{16-36 } }{2x1}

x2=\frac{-4-\sqrt{-20} }{2x1}

If the content of the root is negative, the root will have no solution within the set of real numbers. Then \sqrt{-20} has no solution.

Finally, the zeros of the quadratic function f(x) = x² + 4x +9 do not exist.

Learn more about the zeros of a quadratic function:

brainly.com/question/842305

brainly.com/question/14477557

#SPJ1

6 0
1 year ago
If tan theta =12/5 and cos theta &lt; 0, what is sin theta ?
xenn [34]

If tan theta =12/5 and cos theta < 0, then sin theta is -12/13. The correct answer between all the choices given is the last choice or letter E. I am hoping that this answer has satisfied your query about and it will be able to help you.

8 0
3 years ago
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