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marishachu [46]
3 years ago
13

A car has an original value of $40,000. the value decreases at a rate of 18% each year. after how many complete years will the c

ar be worth less than one-half of the original value?
Mathematics
1 answer:
lina2011 [118]3 years ago
8 0
The car will be worth 18,084.24$ in 3 years.
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How do i use properties of exponents
STatiana [176]
You can use the properties of exponents in three ways: Products of Power and Power to Power


Explanation:

Product of a Power: When you multiply exponentials with the same base, you add their exponents

Power to a Power: When you have a power to a power, you multiply the exponents.
Quotient of Powers: When you divide exponentials with the same base, you subtract the exponents.
3 0
3 years ago
A recipe calls for blueberry muffins cost for 2 3/4 cup of blueberries. You are making 1/3 of the recipe. How much blueberries s
tester [92]

Answer: 8/9 cups

Step-by-step explanation:

The word 'of' means 'times' as far as fractions are concerned. In this case, we have 1/3 of 2 1/3.

First, it is a good idea to make 2 1/3 an improper fraction - as 8/3, so now we have:

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The answer is 8/9 cups.

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3 years ago
State when f(x) is increasing , decreasing , concave up , concave down .
Marizza181 [45]

Answer:

f(x) = sec x. tan x

⇔ f(x) = 1/cosx . cosx/sinx

⇔ f(x) = sin x

+) when f(x) is increasing => sin x increases

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+) f(x) is decreasing => x will decrease

+) f(x) is concave up => x ∈ (-pi/2; 0)

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Step-by-step explanation:

3 0
2 years ago
6. Marisol plans to make 9 mini-sandwiches for
Oksanka [162]

Answer:

18/4

Step-by-step explanation: in order to get an equivalent ration just multiply both numerator and denominator by the same number

in this case I multiplied by 2 and got 18/4

3 0
3 years ago
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Answer:

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