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2 years ago

Find the value of x that makes m || n

Mathematics

1 answer:

ch4aika [34]2 years ago

8 0

Answer:

x=133

Step-by-step explanation:

Given: m║n

This means that 147 and x+14 are <em>alternate exterior angles</em>. This also means that they are equivalent. We can use this information to set up an equation:

x+14=147

Subtract 14 from both sides to isolate x

x=133

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Murrr4er [49]

Answer: Option A

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Step-by-step explanation:

Use the quadratic formula to find the zeros of the function.

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The quadratic formula is:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

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Then using the quadratic formula we have that:

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$x=\frac{6\±\sqrt{36-40}}{4}$

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Remember that $\sqrt{-1}=i$

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$x=\frac{6\±2i}{4}$

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$x=\frac{3+i}{2}$ or $x=\frac{3-i}{2}$

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Step-by-step explanation:

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3 years ago

Find a_1 and d for an arithmetic sequence with these terms. a_4=9and a_7=18

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$\bf \begin{array}{llll}
term&value\\
-----&-----\\
a_4&9\\
a_5&9+d\\
a_6&(9+d)+d\\
&9+2d\\
a_7&(9+2d)+d\\
&9+3d=\underline{18}
\end{array}\\\\
-------------------------------\\\\
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$\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
n=7\\
d=3
\end{cases}
\\\\\\
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\\\\\\
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