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3 years ago

Help Plsss.........( 10 pts )

Mathematics

2 answers:

Angelina_Jolie [31]3 years ago

5 0

Answer: B

Step-by-step explanation: just did it

rusak2 [61]3 years ago

5 0

Answer:

it is definitely a........

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Find x if eg is a median of triangle DEF.. 5x-17 & 3x+1

GREYUIT [131]

If eg is the median, that means
5x-17=3x+12x=18x=9

4 0

3 years ago

GEOMETRY SIDE LENGTHS

PilotLPTM [1.2K]

Answer:

I believe that the third answer is correct..... but I'm not positive.

Step-by-step explanation:

if you get the third side of the triangle to be 71 then it would go first. Then it would go to 45-55. And lastly to 71-45

3 0

3 years ago

If a number is decreased by 8, the result is -21. What is the

wariber [46]

Answer:

answer = -13

Step-by-step explanation:

number = x

x - 8 = -21

x = -21 + 8

= -13

Recheck :

num = - 13

decreased by 8 = - 13 -8 = -21

4 0

3 years ago

The system shown has the unique solution (2, y, z). Solve the system and select the values that complete the solution. y = 0 y =

madreJ [45]

So we are given a system:
$3x-2y+3z=0\\
-3x - 5y - 5z= -21$
Substitute x = 2 we get the system:
$-2y+3z=-6\\
- 5y - 5z= -15$
Multiply the first equation by -5 and the second by 2 we get the system:
$10y-15z=30\\
- 10y - 10z= -30$
Adding the two equations we get :
$-25z=0\text{ then}z=0.$
We find the value of y by using any of the other equations like this:
$-2y=-6\\y=3.$
Final solution:
$z=0,y=3$

8 0

3 years ago

Read 2 more answers

Simplify square root of negative 48

77julia77 [94]

$\bf \sqrt{-48}\qquad 
\begin{cases}
48=2\cdot 2\cdot 2\cdot 2\cdot 3\\
\qquad 2^2\cdot 2^2\cdot 3\\
\qquad (2^2)^2\cdot 3
\end{cases}\implies \sqrt{-1\cdot (2^2)^2\cdot 3}
\\\\\\
\sqrt{-1}\cdot \sqrt{(2^2)^2\cdot 3}\implies i\cdot 2^2\sqrt{3}\implies 4\sqrt{3}\ i$

5 0

4 years ago