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scoray [572]
3 years ago
7

Simplify:(2x+y-z)^2-(2x+y+z)^2

Mathematics
1 answer:
storchak [24]3 years ago
5 0

Q: "Simplify the following expression (2x+y-z)^2-(2x+y+z)^2"  

As a simplified expression is  

A: -8xz - 4yz

Hopefully this helps you ^0^

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Each morning librarians place 560 books on a book shelf in the school library. Each student that visits library that day takes e
Alex73 [517]

Answer:

Step-by-step explanation:

560=3s+b

b.

560=3×150+b

b=560-450=110

when s=149,b=560-3×149=560-447=113

s=2,b=560-3×2=560-6=554

s=1,b=560-3×1=557

s=0,b=560-3×o=560

so domain of b={110,113,116,...,554,557,560}

7 0
3 years ago
O DATA ANALYSIS AND STATISTICS Outcomes and event probability A number cube is rolled three times. An outcome is represented by
Simora [160]

ANSWER

EXPLANATION

For each of the three events, there are 8 possible outcomes, so the probability of each event is,

P(event)=\frac{favorable\text{ }outcomes}{possible\text{ }outcomes}=\frac{favorable\text{ }outcomes}{8}

• Event A:, there must be only odd numbers in the last two rolls, which are either ,EOO or OOO,. This event has 2 favorable outcomes, ,so its probability is 1/4,.

,

• Event B,: this is the complementary event to event A. Here the last two rolls must be even numbers - both or only one of the last two: ,OOE, EEO, EOE, OEE, EEE, OEO,. This event has 6 favorable outcomes, so ,its probability is 3/4,.

,

• Event C,: this event is when the first and last rolls are even numbers in the same event. This is either ,EOE or EEE,. Since this event has 2 favorable outcomes, ,its probability is 1/4,.

5 0
1 year ago
The figure shows a diver diving from a platform, the diver reaches a depth of 4meters what is the change in the elevation of the
AleksAgata [21]

Answer:

15ft

Step-by-step explanation:

you have to add 11 and 4 to get 15

7 0
3 years ago
Read 2 more answers
3/4 of the students at Timber Elementary play sports. Of those students, 1/5 of them play soccer. What fraction of the students
vovangra [49]

Answer:

3/20 of the students play soccer

Step-by-step explanation:

1. Divide the amount of students that play sports, 3/4 by the amount of those that play soccer, 1/5

2. 3/4 divided by 1/5= 3/20

5 0
3 years ago
Find the value of x *
monitta

Answer:

98 degrees

Step-by-step explanation:

57 + 41 is 98

so take 98 from 180 which is 82

then you take 82 from 180 to find x which is 98

4 0
3 years ago
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