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liraira [26]
3 years ago
5

HELP! WILL MARK BRAINLIEST!

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

Answer:

3

Step-by-step explanation:

3

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Evaluate the geometric series. Please help me!!
o-na [289]

Answer:

- 85

Step-by-step explanation:

The n th term of a geometric series is

a_{n} = a(r)^{n-1}

where a is the first term and r the common ratio

1(-2)^{n-1} ← is the n th term of a geometric series

with a = 1 and r = - 2

The sum to n terms of a geometric series is

S_{n} = \frac{a(r^{n}-1) }{r-1}

    = \frac{1((-2)^{8}-1 }{-2-1}

    = \frac{256-1}{-3}

    = \frac{255}{-3}

    = - 85

6 0
3 years ago
I'll give a brainliest PLZ HELPP ​
dlinn [17]
M = 18 also for future use download microsoft math solver on your phone or you can go on the laptop too
5 0
3 years ago
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I just got expert rank so fr3e points to celebrate <3
kramer

Answer:

hi

Step-by-step explanation:

hi

5 0
3 years ago
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Write an equation of the perpendicular bisector of the segment with end points M(1,5) and N(7,-1)
vitfil [10]
The perpendicular bisector of the segment passes through the midpoint of this segment. Thus, we will initially find the midpoint P:

P=\dfrac{(1,5)+(7,-1)}{2}=\dfrac{(8,4)}{2}=(4,2)

Now, we will calculate the slope of the segment support line (r). After this, we will use the fact that the perpendicular bisector (p) is perpendicular to r:

m_r=\dfrac{\Delta y}{\Delta x}=\dfrac{5-(-1)}{1-7}=\dfrac{6}{-6}\iff m_r=-1


p\perp r\Longrightarrow m_p\cdot m_r=-1\Longrightarrow m_p\cdot(-1)=-1\iff m_p=1

We can calculate the equation of p by using its slope and its point P:

y-y_P=m_p(x-x_P)\\\\
y-2=1\cdot(x-4)\\\\
y-2=x-4\\\\
\boxed{p:~~y=x-2}
4 0
3 years ago
Mike wants to put a rope around a rectangular plot of flowers he just planted.
9966 [12]
B. The perimeter of the plot of flowers

The perimeter measures the distance around all the edges, which is how much rope he'd need

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3 years ago
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