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Pachacha [2.7K]
4 years ago
9

Which expression is equivalent to 4.8+2.2w−1.4w+2.4 ?

Mathematics
1 answer:
ASHA 777 [7]4 years ago
6 0

Answer:

7.2+0.8w

Step-by-step explanation:

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John is making himself a lunch. He has three different soups to choose from, four different kinds of pop, and three different ki
wariber [46]
For this problem, we use the Fundamental Counting Principle where it states that if an event has n possible outcome and another independent event has m outcomes then there will be nm total possible outcome. Therefore, there are 3x4x3 = 36 possible different lunch John can make.
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3 years ago
Use the information to answer the question.
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3 years ago
What is a true statement about negative exponents?
Nadya [2.5K]

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Raising something to a negative exponent is just taking the reciprocal of the amount.

Step-by-step explanation:

Let's assume that you wanted to know what x^{-2} is.

To find it, you would take the reciprocal of the x amount. So x^{-2} becomes \frac{1}{x^{2}}.

This works because of the nature of exponents. Exponents represent the number of times you are multiplying a value by itself. So a^{3} would be equal to a · a · a. To increase the exponent, you increase the number of times the value is multiplied by itself: To increase a^{3} to a^{5}, you would have to multiply a with a^{3} two more times (a · a · a · a · a). To decrease the exponent, you must divide the value by itself. So to decrease a^{5} to a^{2}, you would have to divide a^{5} by a 3 times.

If the exponent is 0, the value is equal to 1. But you can still decrease the exponent into negative numbers. You just divide 1 by a the desired amount of times: \frac{1}{a^{3}} means that you are dividing 1 by a 3 times.

Hope this helps.

3 0
3 years ago
Marcos drops a bouncy ball from a hieght of 40 feet. The ball loses 10% of its maximum height on each bounce. How high will it b
iren [92.7K]
I think after the 9th bounce it will lose 90% of its max height 

times 40 by 0.9 which will give you 36 
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answer = 4ft 
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3 years ago
Can somebody help me
KiRa [710]

Answer:

Step-by-step explanation:whtyui

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