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WINSTONCH [101]
2 years ago
10

Please help, this is worth 15 points!

Mathematics
2 answers:
rosijanka [135]2 years ago
5 0

Its proportional, YW!!

maxonik [38]2 years ago
4 0

Answer:

its proportional

Step-by-step explanation:

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What is the first step in adding these equations to eliminate y? 5x+6y=9
elena-14-01-66 [18.8K]

multiply all terms in the second equation by 2 to get the coefficient on the y variable to be -6.

2(4x-3y=8)\\8x-6y=16

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3 years ago
PLEASE HELP ME OUT...
katrin2010 [14]

Answer:

area = 144\pi

Step-by-step explanation:

volume =  \frac{4}{3} \pi {r}^{3}  \\  \\ 288\pi =  \frac{4}{3} \pi {r}^{3} \\  \\ 3(288\pi) = 4\pi {r}^{3} \\  \\  \frac{3(288\pi)}{4\pi}  =  {r}^{3}  \\  \\ 216 =  {r}^{3}  \\  \\ r =  \sqrt[3]{216}  \\ r = 6

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3 years ago
Find the 8th term of the geometric sequence, given the first term and common ratio. a1=6 r=-1/3
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The rule of a geometric sequence:

a_n=a_1r^{n-1}

We have:

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Find a_8=?\to n=8

substitute:

a_8=6\cdot\left(-\dfrac{1}{3}\right)^{8-1}=6\cdot\left(-\dfrac{1}{3}\right)^7=6\cdot\left(-\dfrac{1}{2187}\right)=-\dfrac{2}{729}

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3 years ago
Factor and solve X^2+7x-8=0
adelina 88 [10]
(X^2+8x)-(x-8)=0
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3 years ago
Name the two congruent angles. Be sure to use three letters to name each angle.
zysi [14]

Answer:

b and c

Step-by-step explanation:

looking at the markings

8 0
3 years ago
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