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3 years ago

PLEASE HURRY!!!! 30 POINTS!!!!

Mathematics

1 answer:

Elden [556K]3 years ago

6 0

im pretty sure its c

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The ray EG is the angle bisector of DEF and m DEF = 84º. Find mDEG. mDEG = degrees

SVEN [57.7K]

42 degrees. Since the Ray is the angle bisector, that means it divides angle DEF into two angles with equal measure. So, divide 84 by 2 to get 42.

3 0

3 years ago

22.34÷3 please help

Lesechka [4]

Respuesta es 7.4466666667

The asnwer is 7.4466666667

6 0

4 years ago

Read 2 more answers

Please help me out and explain it to me

Grace [21]

Answer:

Answer is option d 14+18i

Step-by-step explanation:

$given \: expression \: is \\ (5 + 12i) - (9 {i}^{2} - 6i) \: \: \: where \: i = \sqrt{ - 1} \: \: \\ = 5 + 12i - 9 {i }^{2} + 6i \\ = 18i + 5 - 9( - 1) \\ 18i + 5 + 9 \\ = 18i + 14$

HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION. 

6 0

3 years ago

Let a is in {−3, −1, 0}. Evaluate −a for each element of the set.

12345 [234]

Ok so a∈{-3,-1,0}. then just {-3*-1,-1*-1,0*-1} which comes to {3,1,0}

7 0

3 years ago

Solve 5x2-2x-8=0 using the quadratic formula.

choli [55]

Answer:

$x=\frac{1+\sqrt{41}}{5},\\x=\frac{1-\sqrt{41}}{5}$

Step-by-step explanation:

The quadratic formula states that the solutions for a quadratic is standard form $ax^2+bx+c$ are equal to $x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$ .

In $5x^2-2x-8=0$ , we can assign the values:

$a$ of 5
$b$ of -2
$c$ of -8

Thus, we have:

$x=\frac{-(-2)\pm \sqrt{(-2)^2-4(5)(-8)}}{2(5)},\\x=\frac{2\pm \sqrt{164}}{10},\\\begin{cases}x=\frac{2+ \sqrt{164}}{10}, x=\frac{1}{5}+\frac{\sqrt{41}}{5}=\frac{1+\sqrt{41}}{5}\\x=\frac{2- \sqrt{164}}{10}, x=\frac{1}{5}-\frac{\sqrt{41}}{5}=\frac{1-\sqrt{41}}{5}\end{cases}$

6 0

3 years ago

Read 2 more answers