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mariarad [96]
2 years ago
7

What is the period of the graph of y=2 cos( pi 4 x)+3? A. 4/pi B. pi/4 C. 8 D. 2

Mathematics
1 answer:
mojhsa [17]2 years ago
8 0

Answer:

Your answer is C. 8.

Step-by-step explanation:

Amplitude: 2

Period: 8

Vertical Shift: 3

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Esmerelda is five times as old as Ruth. Four years ago, the sum of their ages was 22 years. How old is each now?
Lina20 [59]

Answer:

Ruth is  x+4=7/3+4,   esmerelda  is  5x+4=35/3+4

Step-by-step explanation:

if Ruth is x, esmerelda is 5x,

four years ago,

Ruth is x+4,  esmerelda is 5x+4,  depend on the sum, we get:

x+4+5x+4=22, x=7/3

so:

Ruth is  x+4=7/3+4,   esmerelda  is  5x+4=35/3+4

7 0
4 years ago
Given log3 2=0.631 log3 7=1.771 what is log3 14?
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In logarithm, inverse operations are applied.
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5 0
3 years ago
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lutik1710 [3]
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3 0
3 years ago
Tom opens a bank account and makes an initial deposit of $500. The banker tells Tom that he is going to receive
Katena32 [7]

Bank balance after 15 years is $950

Step-by-step explanation:

  • Step 1: Find the simple interest on the principal amount using the formula SI = PRT/100 where Principal (P) = $500, Rate of Interest (R) = 6% and Time(T) = 15 years

⇒ SI = 500 × 6 × 15/100 = $450

  • Step 2: Find total amount using the formula Amount = P + SI

⇒ Amount = 500 + 450 = $950

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