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kondaur [170]
2 years ago
15

What are roots of quadratic function completing the square x^2+4X-1=0

Mathematics
1 answer:
rosijanka [135]2 years ago
5 0

Answer:

x=\sqrt{-4x+1}

x=-\sqrt{-4x+1\\}

Step-by-step explanation:

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Write an expressions that is equivalent to 6c-2/2 +2c+11 in simplest form
alisha [4.7K]

Answer:

8c + 10

Step-by-step explanation:

Divide 2/2:

6c - 1 + 2c + 11

Then Collect Like Terms:

6c + 2c = 8c

-1 + 11 = 10

Final: 8c + 10

3 0
3 years ago
Find r(t) if r'(t) = 5t4i + 6t5j + t k and r(1) = i + j.
Vladimir [108]
\mathbf r(t)=\displaystyle\int(5t^4\,\mathbf i+6t^5\,\mathbf j+t\,\mathbf k)\,\mathrm dt
\mathbf r(t)=(t^5+C_1)\,\mathbf i+(t^6+C_2)\,\mathbf j+\left(\dfrac12t^2+C_3\right)\,\mathbf k

Given \mathbf r(1)=\mathbf i+\mathbf j, we have

\begin{cases}1^5+C_1=1\\\\1^6+C_2=1\\\\\dfrac121^2+C_3=0\end{cases}\implies C_1=0,C_2=0,C_3=-\dfrac12

so that the particular solution is

\mathbf r(t)=t^5\,\mathbf i+t^6\,\mathbf j+\dfrac12(t^2-1)\,\mathbf k
8 0
3 years ago
Show proof and work for brainliest
kirill [66]
Since the total amount of students in the graph is 50, this means that 1 in every 25 students choose sports. There are however 200 students and not 50 in the question. 25 goes into 200 8 times, so there are 8 students doing sports.
5 0
3 years ago
If M is the midpoint of LN and LN =27.8 , find the length of MN . A) 13.8 B) 13.9 C ) 14.2 D) 14.5
dimulka [17.4K]
The answer is B. 13.9. Since M is the midpoint, it splits the line into 2 equal parts.
27.8 / 2 = 13.9
5 0
2 years ago
Read 2 more answers
What is the length of a diagonal cube with a side length of 10cm?
Blizzard [7]

Answer:

Step-by-step explanation:

diagonal=\sqrt{10^2+10^2}

diagonal=\sqrt{200}

diagonal=14.1421356

5 0
2 years ago
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