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MrRissso [65]
3 years ago
11

Expand & simplify: (x - 5)(x + 2)

Mathematics
2 answers:
alexgriva [62]3 years ago
8 0
It’s 10 square two-3x-10
Serjik [45]3 years ago
7 0

Answer:

( x - 5 )( x + 2 )

= x² + 2x - 5x - 10

= x² - 3x - 10

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If one of the 50 states is chosen at random, then a standard die is rolled, Find the probability of getting a state that starts
Black_prince [1.1K]

Answer:

The final answer is 2/15 or 0.133

Step-by-step explanation:

The US States that start with an "N" are:

  1. Nebraska
  2. Nevada
  3. New Hampshire
  4. New Jersey
  5. New Mexico
  6. New York
  7. North Carolina
  8. North Dakota

The probability of selecting a state that starts with an N is 8/50

The probability of rolling at least a two is 5/6.

If we multiply the two probabilities together, we get 2/15.

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11/3 is equal to 3 2/3
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Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that t
blondinia [14]

Answer: Mean = 5.25

Variance = 1.3125

Standard deviation = 1.456

Step-by-step explanation:

The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-

\text{Mean}=np\\\\\text{Variance}=np(1-p)

Given : The total number of enter a clothing store : n=7

The probability of a customer making a purchase= 0.75

Now,

\text{Mean}=7(0.75)=5.25\\\\\text{Variance}=7(0.75)(0.25)=1.3125\\\\\Rightarrow\ \text{Standard deviation}=\sqrt{1.3125}=1.14564392374\approx1.1456

3 0
3 years ago
Evaluate the expression when x = –11. 2x – 19 <br> a. 41 <br> b. 3 <br> c. –3 <br> d. –41
WARRIOR [948]
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D is the answer
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1.) Which of the following expressions is the difference of two terms?
Step2247 [10]

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1.a

2.a

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4.c

5.c

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8 0
3 years ago
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