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Keith_Richards [23]
3 years ago
10

Find the magnitude of the vector. (-2,-7)

Mathematics
2 answers:
Vikki [24]3 years ago
4 0

Answer:

53

Step-by-step explanation:

nevsk [136]3 years ago
3 0

Answer:

\sqrt{53}

Step-by-step explanation:

\begin{pmatrix}-2&-7\end{pmatrix}\\=\sqrt{\left(-2\right)^2+\left(-7\right)^2}\\\\

Then you need to simplify:

=\sqrt{2^2+\left(-7\right)^2}\\=\sqrt{2^2+7^2}\\=\sqrt{4+7^2}\\=\sqrt{4+49}\\=\sqrt{53}

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How many solutions are there for 4x>8
Anni [7]

Answer:

\Huge \boxed{X>2}

Step-by-step explanation:

\large \textnormal{To solve this problem, first you have to isolate it on one side of the equation.}

First, divide by 4 from both sides.

\displaystyle \frac{4x}{4}=\frac{8}{4}

Solve.

\displaystyle 8\div4=\boxed{2}

Therefore, the solutions of 4x>8 is 2.

In conclusion, the correct answer is x=2.

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4 0
3 years ago
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Solve the system with elimination.3x + y = 9x + 2y = 3
NikAS [45]

In order to solve by elimination, let's multiply the first equation by -2. This way, when we add the equations, the variable y will be canceled out:

\begin{cases}-6x-2y=-18 \\ x+2y={3}\end{cases}

Now, adding the equations, we have:

\begin{gathered} -6x-2y+x+2y=-18+3\\ \\ -5x=-15\\ \\ x=\frac{-15}{-5}\\ \\ x=3 \end{gathered}

Now, calculating the value of y, we have:

\begin{gathered} x+2y=3\\ \\ 3+2y=3\\ \\ 2y=0\\ \\ y=0 \end{gathered}

Therefore the solution is (3, 0).

5 0
1 year ago
Solve: <br> m m Fine m Graph is in picture :)
Anastasy [175]

Answer:

50

Step-by-step explanation:

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2 years ago
-3+x=-8 what is the answer
aleksley [76]

Answer:

x=-5

Step-by-step explanation:

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8 0
3 years ago
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