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icang [17]
3 years ago
6

What are the solutions to the equation 3(X -4)(X +5) =0

Mathematics
1 answer:
cestrela7 [59]3 years ago
4 0
Answer should be: X = 4, -5
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Then value of gold is appreciating 18% every hour you were lucky enough to have gold coin which was worth $40 at the beginning o
Zepler [3.9K]

Answer:

The equation is  y=40(1.18)^{x}

Step-by-step explanation:

The exponential growth equation is  y=a(1 + r)^{x} , where

  • a is the initial value (value y at x = 0)
  • r is the rate of increasing in decimal

∵ The value of gold is appreciating 18% every hour

∴ r = 18%

∵ 18% = \frac{18}{100} = 0.18

∴ r = 0.18

∵ The gold coin was worth $40 at the beginning of the crisis

∴ The initial amount is $40

∴ a = 40

∵ y represents the value of the gold after x hours

∴ y=a(1+r)^{x}

- Substitute the values of a and r in the form above

∴ y=40(1+0.18)^{x}

∴ y=40(1.18)^{x}

The equation is  y=40(1.18)^{x}

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3 years ago
NEED FAST HELP......
erik [133]

Answer:

Bruh dk

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How do you do this? Explanation please #46
Charra [1.4K]
8 3/4 times. Hope this helps :)
6 0
3 years ago
Mary spends no more than 21 hours a week doing homework. If she spends 2/7 of the time doing her math homework, what other fract
True [87]

Answer:

6/21, 12/42

Step-by-step explanation:

Mary spends no more than 21 hours a week doing homework. If she spends 2/7 of the time doing her math homework.

The number of hours she spends doing her maths homework is calculated as:

= 2/7 × 21

= 6 hours

The other fractions that could represent the amount of time Mary spends doing her math homework is given as:

6 hours/21 hours = 6/21

Also , that could be represented as:

12/42

Therefore, the other fractions that could represent the amount of time Mary spends doing her math homework is : 6/21 , 12/42

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3 years ago
18. A new truck costs $32,000. The car’s value will depreciate over time, which means it will lose value. For tax purposes, depr
Vlad [161]
The answer is 2,500

32,000 - 24,500 /3
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3 years ago
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