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Alekssandra [29.7K]
3 years ago
10

Try This question and I’ll give you brainliest

Mathematics
2 answers:
Gnoma [55]3 years ago
6 0
Answer: x=9 or x=11
NikAS [45]3 years ago
4 0

Answer:

X=9 or x=11

Step-by-step explanation:

X^2 - 9x-11x+99=0

X*(x-9)-11(x-9)=0

(X-9)*(x-11)=0

X-9=0

X-11=0

X=9

X=11

I hope this helped :)

X^2 is x squared btw

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Find the pair of numbers whose sum is 46 and whose product is a maximum.
Vedmedyk [2.9K]
To solve this problem you must apply the proccedure shown below:

 1. Let's call:

 x the first number and and the other number 46-x

 2. Then, the product of both numbers is:

 y=x(46-x)

 3. When you apply the distributive property, you obtain:

 y=46x-x^2

 4. As you can see, the coefficient of x^2 is negative, this means that the maximun value is at the vertex of the parabola.

 5. Then, you have:

 h=-b/2a
 h=-46/2(-1)
 h=23   (x coordinate)

 6.Then:

  y=46x-x^2
 y=46(23)-(23)^2
 y=529

 Therefore the answer is: 23 and 529.

 
7 0
3 years ago
Yesterday,Bethany sent 60 messages. She said that 15% of those messages were to her best friend. How many text messages did Beth
anyanavicka [17]
Yesterday,Bethany sent 60 messages. She said that 15% of those messages were to her best friend.=> 60 messages is the total number of messages he sent=> 15% = 15% / 100% = .15Question: How many text messages did Bethany send to her friend yesterdaySolutions:=> 60 * .15 = 9 messages were sent to his friend.and the rest were sent to someelse.<span>
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3 0
3 years ago
A skilled chess player believes that when they play a novice opponent, there is a 90% probability they will be able to beat them
zavuch27 [327]

Answer:

b) Binomial

c) Poisson

Step-by-step explanation:

The geometric distribution is the number of trials required to have r successes. The measures the number of sucesses(wins), not the number of trials required to win r games. So the geometric distribution does not apply.

For each match, there are only two possible outcomes, either the skilled player wins, or he does not. The probability of the skilled player winning a game is independent of other games. So the binomial distribution applies.

We can also find the expected number of wins of the skilled player, which is 15*0.9 = 13.5. The Poisson distribution is a discrete distribution in which the only parameter is the expected number of sucesses. So the Poisson distribution applies.

So the correct answer is:

b) Binomial

c) Poisson

7 0
3 years ago
Read 2 more answers
14 x blank x blank =169 I need help with the blanks because 169 is the face area.
luda_lava [24]
Answer:

Volume of the rectangular prism = 2366 cubic inches

Explanations:

The volume of a prism = Base Area x Height

In this case, the base area is referred to as the face area

Base area = 169 square inches

Height = 14 inches

Volume of the prism = 169 x 14

Volume of the rectangular prism = 2366 cubic inches

8 0
1 year ago
What is 66% of $444? (Round to the nearest whole number)
mezya [45]
$444-66%= $150.96= $151
8 0
2 years ago
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