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bezimeni [28]
2 years ago
5

Evaluate - y + (- z) + 7.99 where y = 1.46 and z = 3.82

Mathematics
1 answer:
MA_775_DIABLO [31]2 years ago
7 0

Answer:

2.71

Step-by-step explanation:

-y + (- z) + 7.99 =

= -(1.46) + [-(3.82)] + 7.99

= -1.46 - 3.82 + 7.99

= 2.71

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What is the value of the expression “two less than six times the difference of a number and five” when n = 9?
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Answer:

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Step-by-step explanation:

I believe this can be set up as 6(n-5)-2. The difference of a number and five can be represented by n-5. If this needs to be multiplied by 6 (hence 6 times), it would become 6(n-5). Two less than that is represented by -2. Thus, two less than six times the difference of a number and five is 6(n-5) -2, which, when n=9 is plugged in, looks like 6(9-5) -2. Follow PEMDAS from there.

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Step-by-step explanation:

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A right angled triangle has two shorter sides and one is twice as long as the other. The hypotenuse is 25cm long. What are the l
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Answer:  x =  14.43

Step-by-step explanation:

The Pythagorean Theorem states the following:  

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Now, you can plug the values into the equation,  right?  

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