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dem82 [27]
3 years ago
8

Select the correct answer from each drop-down menu.

Mathematics
1 answer:
alisha [4.7K]3 years ago
8 0

Answer:

\langle4,-1\rangle

Step-by-step explanation:

To subtract two vectors, subtract the horizontal components with each other and the vertical components with each other:

w=\langle5,3\rangle

z=\langle1,4\rangle

w-z=\langle5,3\rangle-\langle1,4\rangle=\langle5-1,3-4\rangle=\langle4,-1\rangle

Therefore, the resulting vector is \langle4,-1\rangle

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Answer:

-7x^2+x+9=-6x

-7x^2+x+9+6x=-6x+6x

-7x^2+7x+9=0

quadratic\: formula

x_{1,\:2}=\frac{-7\pm \sqrt{7^2-4\left(-7\right)\cdot \:9}}{2\left(-7\right)}

\sqrt{-7^{2} -4(-7)\times9} =\sqrt{301}

x_{1,\:2}=\frac{-7\pm \sqrt{301}}{2\left(-7\right)}

\frac{-7+\sqrt{301}}{2\left(-7\right)}

=\frac{-7+\sqrt{301}}{-2\cdot \:7}

=\frac{-7+\sqrt{301}}{-14}

\frac{-7-\sqrt{301}}{2\left(-7\right)}

=\frac{-7-\sqrt{301}}{-2\cdot \:7}

=\frac{-7-\sqrt{301}}{-14}

answer=\frac{7+\sqrt{301}}{14}

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