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Juli2301 [7.4K]
3 years ago
5

Write an expression that represents the sum of 7and x

Mathematics
2 answers:
Lady_Fox [76]3 years ago
6 0

Answer:

7 + x

Step-by-step explanation:

............................

Elena L [17]3 years ago
4 0

Answer:

Step-by-step explanation:

7+x

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I HAVE 5 MATH QUESTIONS AND I NEED HELP ASAP. ONLY COMMENT IF YOU'RE GONNA HELP ME PLEASE. THANKS! QUESTIONS ARE PASTED BELOW.
valkas [14]
1. (2,3)
2. (-1,-1)
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4. coincident
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8 0
3 years ago
Find the probability of each event.
jeka57 [31]

Using the binomial distribution, it is found that there is a 0.0108 = 1.08% probability of the coin landing tails up at least nine times.

<h3>What is the binomial distribution formula?</h3>

The formula is:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem:

  • The coin is fair, hence p = 0.5.
  • The coin is tossed 10 times, hence n = 10.

The probability that is lands tails up at least nine times is given by:

P(X \geq 9) = P(X = 9) + P(X = 10)

In which:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 9) = C_{10,9}.(0.5)^{9}.(0.5)^{1} = 0.0098

P(X = 10) = C_{10,10}.(0.5)^{10}.(0.5)^{0} = 0.001

Hence:

P(X \geq 9) = P(X = 9) + P(X = 10) = 0.0098 + 0.001 = 0.0108

0.0108 = 1.08% probability of the coin landing tails up at least nine times.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

5 0
2 years ago
Can someone help me please
defon

Answer:

181.25 square feet

1/6 quart water

1/18 cup milk

1/3 beef bouillon cube, and 2/3 a large carrot

Step-by-step explanation:

5 0
3 years ago
Which value of x makes the equation 1.25(6x - 20) = 50 true?
bixtya [17]
D. X = 10

6x-20= 40

6x=40+20

6x=60

X=10
4 0
2 years ago
Determine the x and y intercepts <br><br> y = -x^2 + 6x - 8
Andrews [41]
Y intercept is negative 8
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3 years ago
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