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Tomtit [17]
3 years ago
11

Plz help me with my math

Mathematics
1 answer:
ohaa [14]3 years ago
6 0

Answer:

− 3 x ^2 − 5 x − 15

I tried my best hope this helps it is the third one down from the top not the answer you put.

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Gud morning friends how are you plz follow me please follow me ❤️❤️​
iren2701 [21]

Answer:

ok i will

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A circle has a radius of 3. An arc in this circle has a central angle of 20
ki77a [65]

A circle has a radius of 3 An arc in this circle has a central angle of 20 what is the length of the arc

8 0
3 years ago
Solve the simultaneous equations by substitution 3 x − 7 y = − 10 x = 5 y + 2
mojhsa [17]

Answer:

3x-7y=-10_{(1)} \\x=5y+2_{(2)}\\

Substituting Equation 2 into equation 1

3(5y+2)-7y=-10_{(3)} \\15y+6-7y=-10\\15y-7y+6=-10\\8y+6=-10\\8y=-10-6\\8y=-16\\y=\frac{-16}{8} \\y=-2\\

Substitute the value of y into Equation 2

x=5y+2\\x=5(-2)+2\\x=-10+2\\x=-8\\

Therefore x=-8, y=-2

Step-by-step explanation:

Have a nice day :)

5 0
2 years ago
Consider a deck with 2626 black and 2626 red cards. You draw one card at a time and you can choose either guess on whether it is
gregori [183]

The maximum earning is v(r,b)

Let v(r,b) be the expected value of the game for the player, assuming optimal play, if the remaining deck has r red cards and b black cards.

Then v(r,b) satisfies the recursion

and

The stopping rule is simple: Stop when v(r,b)=0.

To explain the recursion . . .

If r,b>0, and the player elects to play a card, then:

  • The revealed card is red with probability \frac{r}{r+b}, and in that case, the player gets a score of +1, and the new value is V(r-1,b)
  • The revealed card is black with probability \frac{b}{r+b}, and in that case, the player gets a score of −1, and the new value is V(r,b-1)

Thus, if r,b>0, electing to play a card yields the value f(r,b).

But the player always has the option to quit, hence, if r,b>0, we get v(r,b)=max(0,f(r,b)).

Implementing the recursion in Maple, the value of the game is

v(26,26)=41984711742427/15997372030584

v(26,26)  ≈2.624475549

and the optimal stopping strategy is as follows . . .

  • If 24≤b≤26, play while r≥b−5.
  • If 17≤b≤23, play while r≥b−4.
  • If 11≤b≤16, play while r≥b−3.
  • If 6≤b≤10, play while r≥b−2.
  • If 3≤b≤5, play while r≥b−1.
  • If 1≤b≤2, play while r≥b.
  • If b=0, play while r>0.  

So, The maximum earning is v(r,b)

Learn more about PROBABILITY here

brainly.com/question/24756209

#SPJ4

4 0
2 years ago
Suppose rafiq went to the nursey and bought a tree priced at 49.99 and two packages of fertilizer priced at 13.99 each. The sale
Mashutka [201]

Answer:

$83.04

Step-by-step explanation:

1. Add up all the prices (49.99, 13,99, 13.99) = 77.97

2. Tax is 6.5% (.065 in decimal form)

3. Multiply 77.97 * .065 = 5.06805

4. 5.06805 rounds to 5.07

5. Add the total purchase (77.97) to the tax (5.07) = 83.04

5 0
3 years ago
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