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Darya [45]
3 years ago
10

Geometry Math Question

Mathematics
1 answer:
kap26 [50]3 years ago
6 0
(х - х₀)² + (у - у₀)² = r²
х₀=3,  у₀=-4,  r=3


(x-3)² + (y-(-4))² = 3²
(x-3)² + (y+4)² = 9  ← answer
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5pts and the person who has the correct answer gets brainliest​
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the marked price of an article , which is brought it for Rs 1280 is 25% above the cost price. if the discount is allowed and cus
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3 years ago
the table below shows the discount prices for a pair of shoes several months after they are released​
tensa zangetsu [6.8K]

Answer:

  • an = 160·0.85^(n-1)
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Step-by-step explanation:

In the given formula, a1 refers to the first term of the sequence (160), and r refers to the common ratio (136/160 = 0.85). Putting these values into the formula gives ...

a) Explicit formula: an = 160·0.85^(n-1)

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b) The 8th term is found by putting n=8 into the formula and doing the arithmetic:

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After 8 months, the price is predicted to be $51.29.

8 0
4 years ago
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G)<br>(Sin 5A - Sin 7A - Sin 4A + Sin 8A)÷<br>(Cos 4A - Cos 5A - Cos 8A + Cos 7A)=<br>Cot 6A​
RoseWind [281]

We use a similar strategy as in your previous question. Rewrite:

sin(5<em>x</em>) = sin(6<em>x</em> - <em>x</em>) = sin(6<em>x</em>) cos(<em>x</em>) - cos(6<em>x</em>) sin(<em>x</em>)

sin(7<em>x</em>) = sin(6<em>x</em> + <em>x</em>) = sin(6<em>x</em>) cos(<em>x</em>) + cos(6<em>x</em>) sin(<em>x</em>)

→ sin(5<em>x</em>) - sin(7<em>x</em>) = -2 cos(6<em>x</em>) sin(<em>x</em>)

sin(4<em>x</em>) = sin(6<em>x</em> - 2<em>x</em>) = sin(6<em>x</em>) cos(2<em>x</em>) - cos(6<em>x</em>) sin(2<em>x</em>)

sin(8<em>x</em>) = sin(6<em>x</em> + 2<em>x</em>) = sin(6<em>x</em>) cos(2<em>x</em>) + cos(6<em>x</em>) sin(2<em>x</em>)

→   sin(8<em>x</em>) - sin(4<em>x</em>) = 2 cos(6<em>x</em>) sin(2<em>x</em>)

cos(5<em>x</em>) = cos(6<em>x</em> - <em>x</em>) = cos(6<em>x</em>) cos(<em>x</em>) + sin(6<em>x</em>) sin(<em>x</em>)

cos(7<em>x</em>) = cos(6<em>x</em> + <em>x</em>) = cos(6<em>x</em>) cos(<em>x</em>) - sin(6<em>x</em>) sin(<em>x</em>)

→   cos(7<em>x</em>) - cos(5<em>x</em>) = -2 sin(6<em>x</em>) sin(<em>x</em>)

cos(4<em>x</em>) = cos(6<em>x</em> - 2<em>x</em>) = cos(6<em>x</em>) cos(2<em>x</em>) + sin(6<em>x</em>) sin(2<em>x</em>)

cos(8<em>x</em>) = cos(6<em>x</em> + 2<em>x</em>) = cos(6<em>x</em>) cos(2<em>x</em>) - sin(6<em>x</em>) sin(2<em>x</em>)

→   cos(4<em>x</em>) - cos(8<em>x</em>) = 2 sin(6<em>x</em>) sin(2<em>x</em>)

Then

(sin(5<em>x</em>) - sin(7<em>x</em>) - sin(4<em>x</em>) + sin(8<em>x</em>)) / (cos(4<em>x</em>) - cos(5<em>x</em>) - cos(8<em>x</em>) + cos(7<em>x</em>))

= (2 cos(6<em>x</em>) sin(2<em>x</em>) - 2 cos(6<em>x</em>) sin(<em>x</em>)) / (2 sin(6<em>x</em>) sin(2<em>x</em>) - 2 sin(6<em>x</em>) sin(<em>x</em>))

= (2 cos(6<em>x</em>) (sin(2<em>x</em>) - sin(<em>x</em>))) / (2 sin(6<em>x</em>) (sin(2<em>x</em>) - sin(<em>x</em>)))

= cos(6<em>x</em>) / sin(6<em>x</em>)

= cot(6<em>x</em>)

QED

5 0
3 years ago
Question in the photo I need to know which one is the domain because I am not sure
nevsk [136]

Answer:

Question B

Step-by-step explanation:

If you would like a step by step explination comment below because it very simple but i do not know what grade your in so i shall not explain until

5 0
4 years ago
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