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slamgirl [31]
3 years ago
12

Question 8 of 25

Mathematics
1 answer:
Advocard [28]3 years ago
6 0

Answer:

12 hours about is the answer

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Rationalize <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%20%5Csqrt%7B7%7D%20%2B%203%20%5Csqrt%7B3%7D%20%20%7D%20"
Ivahew [28]
\dfrac{1}{2 \sqrt{7} + 3 \sqrt{3}  }

= \dfrac{1}{2 \sqrt{7} + 3 \sqrt{3} } \times  \dfrac{2 \sqrt{7} - 3 \sqrt{3}}{2 \sqrt{7} - 3 \sqrt{3}}

=\dfrac{2 \sqrt{7} - 3 \sqrt{3}}{(2\sqrt{7})^2 - (3\sqrt{3})^2}

=\dfrac{2 \sqrt{7} - 3 \sqrt{3}}{28 - 27}

=\dfrac{2 \sqrt{7} - 3 \sqrt{3}}{1}

=2 \sqrt{7} - 3 \sqrt{3}

6 0
4 years ago
Eating blank provides your body with nutrients it needs for energy
Anna [14]

Answer:

I'm pretty sure its

Eating food provides your body with nutrients it needs for energy


4 0
3 years ago
What is the value of f(-16) if f(x)= 2x-16?
Elza [17]
F (x) = f (-16)
So you should plug -16 in for x 

f (-16) = 2(-16) -16

f(x) = -32 -16

f(x) = -48
8 0
4 years ago
Read 2 more answers
choose the equation that represents a line that represents a line that passes through points -3, 2 and 2,1 A. 5x+y=-13 B. 5x-y=1
Mrrafil [7]

bearing in mind that standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

\bf (\stackrel{x_1}{-3}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{1}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{1-2}{2-(-3)}\implies \cfrac{-1}{2+3}\implies -\cfrac{1}{5} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-2=-\cfrac{1}{5}[x-(-3)]\implies y-2=-\cfrac{1}{5}(x+3)

\bf y-2=-\cfrac{1}{5}x-\cfrac{3}{5}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{5}}{5\left(y-2 \right)=5\left( -\cfrac{1}{5}x-\cfrac{3}{5} \right)}\implies 5y-10=-x-3 \\\\\\ 5y=-x+7\implies x+5y=7

6 0
4 years ago
He following set of coordinates represents which figure? (1, 1), (5, 3), (7, 7), (3, 5)
Musya8 [376]

There are 4 vertexes, so you know it's a polygon. When you graph these points it looks like the picture I linked below. It's a parallelogram because it has 2 pairs of parallel lines.

4 0
3 years ago
Read 2 more answers
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