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My name is Ann [436]
3 years ago
6

-x-6y=10 x-2y=-2 using elimination?

Mathematics
2 answers:
Lana71 [14]3 years ago
4 0
Answer: x = -4, y = 1

AleksAgata [21]3 years ago
3 0
If we add the two equations we get:
-x - 6y + x - 2y = 10 + (-2)
-8y = 8, therefor y = -1

If y = -1:
-x - 6(-1) = 10
-x + 6 = 10
-x = 4
x = -4

Therefor the solution would be (-4, -1)
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Area of rectangular figures​
iren2701 [21]

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Step-by-step explanation:

21 x 18 = 378 in^2

17 x 9 = 153 in^2

378 + 153 = 531 in^2

3 0
3 years ago
Consider the cylinder with a volume of 132π cm3. A cylinder with volume of 132 pi centimeters cubed. What is the volume of a con
vagabundo [1.1K]

Answer:

44 pi centimeters cubed

Step-by-step explanation:

Since, base radius and height of cone are equal to to that of cylinder. Hence,

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4 0
3 years ago
Read 2 more answers
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egoroff_w [7]

Answer: y=-3x+17

b = 17

4 0
3 years ago
Find the sum of a finite geometric series. The Smiths spent $2,000 on clothes in a particular year. If they increase the amount
boyakko [2]

\bf \stackrel{\textit{first year}}{2000}~~,~~\stackrel{\textit{second year}}{2000+\stackrel{\textit{10\% of 2000}}{\frac{2000}{10}}}\implies 2200

now, if we take 2000 to be the 100%, what is 2200? well, 2200 is just 100% + 10%, namely 110%, and if we change that percent format to a decimal, we simply divide it by 100, thus \bf 110\%\implies \cfrac{110}{100}\implies 1.1.

so, 1.1 is the decimal number we multiply a term to get the next term, namely 1.1 is the common ratio.

\bf \qquad \qquad \textit{sum of a finite geometric sequence}\\\\S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad \begin{cases}n=n^{th}\ term\\a_1=\textit{first term's value}\\r=\textit{common ratio}\\----------\\a_1=2000\\r=1.1\\n=4\end{cases}\\\\\\S_4=2000\left[ \cfrac{1-(1.1)^4}{1-1.1} \right]\implies S_4=2000\left(\cfrac{-0.4641}{-0.1}  \right)\\\\\\S_4=2000(4.641)\implies S_4=9282

7 0
3 years ago
Please solve the problem and show all steps, thank you.a-c=d+r, for a
Delicious77 [7]

Answer:

a = d + r + c

Step-by-step explanation:

a - c + c = d + r + c

a = d + r + c

6 0
3 years ago
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