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goblinko [34]
3 years ago
11

(6th grade)

Mathematics
2 answers:
Blizzard [7]3 years ago
6 0

Answer:

-4

Step-by-step explanation:

-8×-8/-8+-8

-8•(-8)/-16

-8•8/16

-8/2

-4

SVETLANKA909090 [29]3 years ago
5 0
The answer is to this is, 1. :)
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Please answer as quickly as possible!!
Sav [38]

Answer:

15 points

Step-by-step explanation:

6 0
3 years ago
Classify the expression: 5x + 3x^2 − 7x^3 + 2
AysviL [449]

Answer:

C. Cubic expression.

Step-by-step explanation:

The highest exponent is 3 ( in the term 7x^3) so it is cubic.

3 0
3 years ago
Read 2 more answers
A new surgery is successful 70% of the time , if the results of 8 such surgeries are randomly sampled, what is the probability t
il63 [147K]

Answer:

P (x>5) = 0.5324014=0.523

Step-by-step explanation:

Here success = p= 0.7 and failure = q= 1-p= 1-0.7 = 0.3

Number of surgeries= n= 8

Applying the binomial distribution

( p+q) ^n= nC x p^x . q^n-x

More than 5 means  6,7, and 8

( p+q) ^8= 8C 5 (0.7)^5 . (0.3)^3

                =56* 0.16807*0.027

                       = 0.254121

( p+q) ^8= 8C 6 (0.7)^6 . (0.3)^2

                =  28* 0.1177* 0.09

                    = 0.296604

( p+q) ^8= 8C 7 (0.7)^7 . (0.3)^1

                =  8* 0.0824* 0.3

                  = 0.19776

( p+q) ^8= 8C8 (0.7)^8 . (0.3)^0

                =  1* 0.05765* 1

                  =0.05765

Adding the above all probabilities  gives

P (x>5) = P (x=6) + P(x=7) + P(x=8)

               = 0.296604+0.19776+0.05765

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7 0
3 years ago
" Draw three lines with slope 2, and three lines with slope 1/3. What do you notice "
Tom [10]

Answer:

Step-by-step explanation:

1.

all the lines with slope 2 are parallel with each-other

all the lines with slope 1/3 are parallel with each-other

2.

all lines have positive slope so they go upward from left to right

3.

slope 2 is steeper then slope 1/3

4.

the distance between the parallel lines with slope (1/3) is greater for the lines with the slope 2

6 0
3 years ago
fernando walked his dog 2/10 mileon saturday and 60/100 mile on Sunday. How far did he walk his dog in all?
Vlad [161]
4/5 a mile



2/10 time 10=20/100
20/100+ 60/100=80/100 or 4/5


6 0
3 years ago
Read 2 more answers
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