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3 years ago

PLEASE HELP ME! I will not accept nonsense answers, but will give BRAINLIEST if you get it correct with solutions:)

Mathematics

2 answers:

Alik [6]3 years ago

6 0

Answer: B. He loses 1/5 of his points in the next crash

Plug in x = 0 to get y = 100(4/5)^0 = 100. He starts with 100 points

After x = 1 crash happens, he has y = 100(4/5)^1 = 80 points left. He lost 20/100 = 1/5 of his points after one crash.

WITCHER [35]3 years ago

6 0

It is the 3rd statement. I got it from process of elimination. The first 2 is incorrect because if Lou crashes once he loses 20 points but if he loses twice he loses 36 points. The last one is incorrect because this is an exponential equation. You don’t add, you multiply.

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What is the value of 1/3 x^2 + 5.2y when x = 3 and y = 2?<br><br> PLZ HELP!!!

olasank [31]

The first step in solving this is to substitute x with 3 and y with 2, so that
$\frac{1}{3} x^{2} +5.2y$
becomes
$\frac{1}{3} (3)^{2} +5.2(2)$
Then simply solve using the order of operations.
First exponents (there are no parentheses)
$\frac{1}{3} 9 +5.2(2)$
Then multiply and divide
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And finally add and subtract
$13.4$
Therefore the value <span>of 1/3 x^2 + 5.2y when x=3 and y=2 is 13.4</span>

6 0

3 years ago

Plzzz help me I don't get it!!!!!

igor_vitrenko [27]

The answer is 4.

Explanation:

Well, let's break this into pieces.

First, let's work on the first term.

3^8 = 6,561
2^-5 = 1/2^5 = 1/32
9^0 = 1

Multiply all those together, and you get 6,561/32.

Then, if you set that fraction to the power of -2, you get 1,024/43,046,721

Now, let's take the middle term.

2^-2 = 1/4
3^3 = 27

Multiply them together to get 1/108.

Then, set the fraction to the power of 4 to get 1/136,048,896

Next, let's focus on the last term.

3^28 = 22,876,792,454,961

Finally, we have to multiply the terms together.

1,024/43,046,721 · 1/136,048,896 · 22,876,792,454,961

This equals 23,425,835,473,880,000/5,856,458,868,470,016, which can be simplified (quite nicely) to a final answer of 4.

4 0

4 years ago