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elixir [45]
3 years ago
5

Since quarantine my brain seems to be forgetting things.

Mathematics
1 answer:
Anastaziya [24]3 years ago
6 0

Answer:

Step-by-step explanation:

for the area of a regular polygon, the formula is area=1/2 perimeter x apothem, or area=1/2pa

the apothem(A) is the segment that joins the center to the midpoint of any side

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A principal of $2600is invested at 6.75% interest, compounded annually. How much will the investment be worth after 14 years
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a = $6488.19

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If f(x) = 5x - 12, what is f2)?<br> O A. -22<br> O B. 10<br> O C. -2<br> D. 2
Step2247 [10]

Answer:

C , -2

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6 0
3 years ago
Read 2 more answers
Match the equations with their solutions over the interval [0, 2π].
nignag [31]

I solved this using a scientific calculator and in radians mode since the given x's is between 0 to 2π. After substitution, the correct pairs are:

cos(x)tan(x) – ½ = 0 → π/6 and 5π/6

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sec(x)cot(x) + 2 = 0 → 7π/6 and 11π/6

sec(7π/6)cot(7π/6) + 2 = 0

sec(11π/6)cot(11π/6) + 2 = 0

 

sin(x)cot(x) + 1/sqrt2 = 0 → 3π/4 and 5π/4

sin(3π/4)cot(3π/4) + 1/sqrt2 = 0

sin(5π/4)cot(5π/4) + 1/sqrt2 = 0

 

csc(x)tan(x) – 2 = 0 → π/3 and 5π/3

csc(π/3)tan(π/3) – 2 = 0

csc(5π/3)tan(5π/3) – 2 = 0

5 0
3 years ago
Read 2 more answers
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