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N76 [4]
3 years ago
5

AB has a midpoint at (4,6). If A has a coordinates of (0,4), find the coordinates of B

Mathematics
1 answer:
OLEGan [10]3 years ago
4 0

Answer:

Step-by-step explanation:

(x+0)/2 = 4

x + 0 = 8

x = 8

(y+4)/2=6

y+4 = 12

y = 8

(8,8)

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Ln a+3 + ln a-3 = ln 16
Lilit [14]
\bf log_{{  a}}(xy)\implies log_{{  a}}(x)+log_{{  a}}(y)\\\\
and\qquad \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
-----------------------------\\\\
ln(a+3)+ln(a-3)=ln(16)\implies ln[(a+3)(a-3)]=ln(16)
\\\\\\
ln[a^2-3^2]=ln(16)\impliedby \textit{removing ln() from both sides}
\\\\\\
a^2-9=16\implies a^2=16+9\implies a^2=25
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7 0
3 years ago
8x^3+4x^2–2x+6<br> —————————-<br> 4x^2
miv72 [106K]

Answer:

2( 4x^3 + 2x^2 - x + 3/4x^2)

Step-by-step explanation:

Factor 2 out of the equation

8 0
3 years ago
Read 2 more answers
A group of 5 friends each have x action figures in his or her collection. Each friend buys 11 more
posledela

Answer:

D. 5(x + 11)= 120

Step-by-step explanation:

5 is the number of friends, and they have an unknown number of action figures before buying 11 more.

So we multiply 5 by the number of action figures they have (x) and add 11 because they all bought 11.

Then we make it equal to 120 because thats the total number of action figures.

(I know this isnt part of the question but if you solve for x, you find out that they all had 13 action figures to begin with)

Hope it helps!

5 0
4 years ago
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luda_lava [24]
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x + 3x + 5x = 180
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<span>the smallest angle = x = 20</span>°
3 0
3 years ago
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uranmaximum [27]

Answer:

C) y=3

Step-by-step explanation:

4y squared - 7y = 15

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4(9) -7(3)=15

39-21=15

15=15

7 0
3 years ago
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