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Softa [21]
3 years ago
7

Which statement about this sum is true? −2 4/5+2.7

Mathematics
2 answers:
klasskru [66]3 years ago
4 0

i need a picture or the answer choices plz

xxTIMURxx [149]3 years ago
3 0
- 2 4/5 = -2.8  so 

the sum is -2.8 + 2.7  =  -0.1    or -1/10 
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Find the probability of selecting none of the correct six integers in a lottery, where the order in which these integers are sel
serious [3.7K]

Complete Questions:

Find the probability of selecting none of the correct six integers in a lottery, where the order in which these integers are selected does not matter, from the positive integers not exceeding the given integers.

a. 40

b. 48

c. 56

d. 64

Answer:

a. 0.35

b. 0.43

c. 0.49

d. 0.54

Step-by-step explanation:

(a)

The objective is to find the probability of selecting none of the correct six integers from the positive integers not exceeding 40.  

Let s be the sample space of all integer not exceeding 40.

The total number of ways to select 6 numbers from 40 is |S| = C(40,6).

Let E be the event of selecting none of the correct six integers.

The total number of ways to select the 6 incorrect numbers from 34 numbers is:

|E| = C(34,6)

Thus, the probability of selecting none of the correct six integers, when the order in which they are selected does rot matter is  

P(E) = \frac{|E|}{|S|}

         = \frac{C(34, 6)}{C(40, 6)}\\\\= \frac{1344904}{3838380}\\\\=0.35

Therefore, the probability is 0.35

Check the attached files for additionals  

8 0
3 years ago
If the complex number x = 3 + bi and |x|2 = 13, which is a possible value of b?
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Answer:

A: 2

Step-by-step explanation:

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2 years ago
In which of the following quadrilaterals are consecutive and opposite angles always congruent?
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The quadrilaterals whose consecutive and opposite angles are always congruent are the square and the rectangle. All of the angles of the square and the rectangle are 90 degrees. The consecutive angles of the parallelogram and the rhombus are not equal.
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What’s the answer for x??
zubka84 [21]

Answer:

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or, 3x= 85- 21

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;. x= 21.3

Step-by-step explanation:

the value of x is 21.3

8 0
3 years ago
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