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Svetllana [295]
3 years ago
5

Help help help help help help

Mathematics
1 answer:
IRINA_888 [86]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Formula is (side^2*sqrt3)/4 so 8sqrt3^2 so (216sqrt3)/4=48sqrt3= around 83

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Z^m-n (z^m+ z^m+n + z^n)
rusak2 [61]

Answer:Your left hand side evaluates to:

m+(−1)mn+(−1)m+(−1)mnp

and your right hand side evaluates to:

m+(−1)mn+(−1)m+np

After eliminating the common terms:

m+(−1)mn from both sides, we are left with showing:

(−1)m+(−1)mnp=(−1)m+np

If p=0, both sides are clearly equal, so assume p≠0, and we can (by cancellation) simply prove:

(−1)(−1)mn=(−1)n.

It should be clear that if m is even, we have equality (both sides are (−1)n), so we are down to the case where m is odd. In this case:

(−1)(−1)mn=(−1)−n=1(−1)n

Multiplying both sides by (−1)n then yields:

1=(−1)2n=[(−1)n]2 which is always true, no matter what n is

8 0
3 years ago
What is the tenth term of the sequence 1/2, 3/4, 5/6, 7/8, 9/10,?
Verdich [7]
11/12 i believe that is the answer

3 0
3 years ago
Let line $l_1$ be the graph of $3x + 4y = -14$. Line $l_2$ is perpendicular to line $l_1$ and passes through the point $(-5,7)$.
Vinil7 [7]

3x+4y=-14\implies y=-\dfrac{3x+14}4

and so \ell_1 has slope -3/4. Then any line perpendicular to \ell_1 has slope 4/3.

Given that \ell_2\perp\ell_1 and \ell_2 passes through (-5, 7), its equation is

y-7=\dfrac43(x+5)\implies y=\dfrac{4x}3+\dfrac{41}3

so that m=\frac43 and b=\frac{41}3, which gives

m+b=\dfrac{45}3=\boxed{15}

3 0
4 years ago
Use the slope formula to find the slope of the line passing through the given points.
irina1246 [14]
The slope is undefined because it is a vertical line on the x axis at 0. Its a straight line going up
3 0
3 years ago
How many hundred thousands are in 749,085
nikklg [1K]

Answer:

7 hundred thousands are in 749,085

Step-by-step explanation:

3 0
3 years ago
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