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ivann1987 [24]
3 years ago
11

Given: f(x) = x + 2 [f(x)]^2=

Mathematics
2 answers:
klemol [59]3 years ago
6 0

Answer:

f − 1(x)=x−2 if you are talking about the inverse

please comment what is the purpose of this excersise so i can help you further

Step-by-step explanation:

UNO [17]3 years ago
3 0

Answer:

x^2+4x+4

Step-by-step explanation:

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In a survey, 150 people were asked if they smoke and whether or not they exercise regularly (more than twice a week). The result
s2008m [1.1K]
(a) 28%

(b) 24%

When calculating the total amount of people it come out to 150.

According to the table 42 people smoke. 42/150 is 28%

According to the table 36 people exercise regularly. 36/150 is 24%
7 0
3 years ago
Which expression represents "5 times the sum of 4 and y?"
laila [671]
5(4+y) is the correct answer, you would be adding 4 and y then multiplying the sum by 5
7 0
3 years ago
A fair tossed 10 times . Find the probability of obtaining (i) exactly four heads (ii) 3 heads and 7 tails (iii) at least one he
vodka [1.7K]

Answer:

0.205 ; 0.117 ; 0.999

Step-by-step explanation:

Using binomial probability distribution :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

Probability of success, p = 0.5

P(x = 4) = 10C4 * 0.5^4 * 0.5^6

P(X = 4) = 0.205078125

B.) 3 heads and 7 tails

P(X = 7) = 10C7 * 0.5^7 * 0.5^3

P(X = 7) = 120 * 0.0009765625

P(X = 7) = 0.117

P(atleast one head)

P(x greater than equal to 1) = p(x =1) +... P(x = 10)

Using a binomial probability calculator :

P(x greater than equal to 1) = 0.999

3 0
3 years ago
Triangle QRS is a right triangle.
olasank [31]

Answer:

5.3

Step-by-step explanation:

a² + b² =² c²               the Pythagorean theorem

RQ² + RS² = QS²            Solve RS

6² + RS² = 8²

RS² = 64 -36

RS² = 28

RS = √28                  28 is slightly > 25   and since  √25 =5

RS = 5.3                    actually 5.2915  to a few more significant digits

5 0
3 years ago
Is (31*sqrt(5))/sqrt(65) = 31*sqrt(5/65) ? I'm still new to all this sqrt-ing stuff
sweet [91]
Yes, it is.
(31√5) / √65=31√(5/65)

Answer: yes, it is.


3 0
3 years ago
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