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xz_007 [3.2K]
3 years ago
10

Could ya'll give me a hand on this?

Mathematics
2 answers:
zloy xaker [14]3 years ago
8 0
The answer is X=2 :)
Georgia [21]3 years ago
6 0
I hope this helps you

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Answer this for brainliest
Dafna1 [17]

Answer:

44

Step-by-step explanation:

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3 years ago
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A cylinder has a diameter of 8 inches and a volume of 1287 cubic inches. What is the height of
fredd [130]

Answer:

25.62

Step-by-step explanation:

the answer is rounded and pi was 3.14 to solve this

8 0
3 years ago
-8x^2+4x+5=0 using quadratic formula
daser333 [38]
So you want to solve for x?

It would be nice if this would easily factor:
(-4x + 5)(2x +1)  = 0    This will not work!

So you need to use the quadratic formula:
a = -8, b = 4, c = 5

x = \frac{-b+/-  \sqrt{b^{2}-4ac} }{2a}

x = (-4 +/- \sqrt{16-4(-8)(5)})/2(-8)
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   = 1/4 - \sqrt{11}/4

6 0
3 years ago
You pick a card at random from an ordinary deck of 52 cards. If the card is an ace, you get 9 points; if not, you lose 1 point.
Andreyy89

Answer:

a = 9\\b = 48\\c = -1

Step-by-step explanation:

We know that:

In a deck of 52 cards there are 4 aces.

Therefore the probability of obtaining an ace is:

P (x) = 4/52

The probability of not getting an ace is:

P ('x) = 1-4 / 52

P ('x) = 48/52

In this problem the number of aces obtained when extracting cards from the deck is a discrete random variable.

For a discrete random variable V, the expected value is defined as:

E(V) = VP(V)

Where V is the value that the random variable can take and P (V) is the probability that it takes that value.

We have the following equation for the expected value:

E(V) = \frac{4}{52}(a) + \frac{b}{52}(c)

In this problem the variable V can take the value V = 9 if an ace of the deck is obtained, with probability of 4/52, and can take the value V = -1 if an ace of the deck is not obtained, with a probability of 48 / 52

Therefore, expected value for V, the number of points obtained in the game is:

E(V) = \frac{4}{52}(9) + \frac{48}{52}(-1)

So:

a = 9\\b = 48\\c = -1

3 0
3 years ago
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Write a function for the thickness of folding a piece of paper that is 0.2 millimeters thick. Let t be the thickness of the fold
kumpel [21]
T(n) = 0.2n

Hope I helped!

Let me know if you need anything else!

~ Zoe
6 0
3 years ago
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