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ololo11 [35]
3 years ago
6

Simplify. 7x² - x + 9 + 6x² + 5x - 10 ___________ Will give brainliest

Mathematics
2 answers:
ryzh [129]3 years ago
7 0

Answer:

13x^2+4x-1

Step-by-step explanation:

Colt1911 [192]3 years ago
7 0
13x^2 +4x-1


Because I used Photomath
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See attachment for the whole question.
KengaRu [80]

Using probability concepts, it is found that:

a) \frac{4}{13} probability of drawing a card below a 6.

b) \frac{4}{9} odds of drawing a card below a 6.

c) We should expect to draw a card below 6 about 4 times out of 13 attempts, which as an odd, it also 4 times for every 9 times we draw a card above 6, which is the third option.

------------------------------

  • A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.

Item a:

  • In a standard deck, there are 52 cards.
  • There are 4 types of cards, each numbered 1 to 13. Thus, 4 \times 5 = 20 are less than 6.

Then:

p = \frac{20}{52} = \frac{4}{13}

\frac{4}{13} probability of drawing a card below a 6.

Item b:

  • Converting from probability to odd, it is:

\frac{4}{13 - 4} = \frac{4}{9}

\frac{4}{9} odds of drawing a card below a 6.

Item c:

  • The law of large numbers states that with a <u>large number of trials, the percentage of each outcome is close to it's theoretical probability.</u>
  • Thus, we should expect to draw a card below 6 about 4 times out of 13 attempts, which as an odd, it also 4 times for every 9 times we draw a card above 6, which is the third option.

A similar problem is given at brainly.com/question/24233657

7 0
3 years ago
5x2 this answer is for my brother only my next answer will be everyone's
ikadub [295]

Answer:

the answer is 10

Step-by-step explanation:

because 5+5=10 or 5x2=10

6 0
3 years ago
Read 2 more answers
True or false: if your Exppression contains more than one set of parenthesis, you should evaluate all of them before doing anyth
mr_godi [17]

Answer:

true

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Simplify the given expression below:
ira [324]
The answer is A. -2+5i.

First you set up the problem like this: (6+2i)-(8-3i)
Then you distribute the (-) into the second parenthesis. After doing that you should have something that looks like this: 6+2i-8+3i
Then you add like terms.
6 0
3 years ago
Read 2 more answers
Can u solve this problem in show your work
aksik [14]

Hey there!

We can solve this problem by doing PEMDAS, which lists:

Parentheses \\ Exponents \\ Multiplication \\  Division \\ Addition \\ Subtraction

We have in this equation

Parentheses \\ Exponents \\ Dvision

Let's sp;ve this equation now!

Parentheses ↓

(6 -3) = 3

Exponents ↓

3^2  = 9

Division ↓

\frac{36}{9}  = 9

Okay now , I show you the steps so it can be easier to solve!

\frac{36}{(6-3)^2} \\ \\  6-3 = 3 \\   \\ \frac{36}{3^2}  \\ \\ 3^2 = 9   \\  \\ \frac{36}{9} \\ \\ \\ \\ Answer: 4

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

5 0
4 years ago
Read 2 more answers
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