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AleksandrR [38]
3 years ago
7

Helppp pleaseee finals

Mathematics
1 answer:
Ivan3 years ago
6 0

Answer:

the answer its d

Step-by-step explanation:

I hope this helps

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Svetradugi [14.3K]

Answer:

The weight of each circle is 2g

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3 years ago
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What are the restrictions for a? 2a^2+a-15/5a^2+16a+3
koban [17]

ANSWER


The restrictions are

a\ne -3,a\ne -\frac{1}{5}


EXPLANATION


We were given the rational function,


\frac{2a^2+a-15}{5a^2+16a+3}


The function is defined for all values of a, except



5a^2+16a+3=0


This has become a quadratic trinomial, so we need to split the middle term.


We do that by multiplying the coefficient of x^2 which is 5 by the constant term which is 3. This gives us 15.


The factors of 15 that adds up to 16 are 1 and 15.


We use these factors to split the middle term.




5a^2+15a+a+3=0


We now factor to get,


5a(a+3)+1(a+3)=0


We factor further to get,


(a+3)(5a+1)=0



This implies that,


(a+3)=0,(5a+1)=0


This gives


a=-3,a=-\frac{1}{5}


These are the restrictions.





8 0
4 years ago
What is the surface area of a cube with a side length of 10 inches?
Romashka [77]
Okay so one side is area is 10x10 or 100 there are 6 sides on a cube, so I can do 6x100 which is 600

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-50 POINTS- please help
e-lub [12.9K]

Answer:

-13

-10

Step-by-step explanation:

A x = B

To find X

A ^ -1 A  x = A ^ -1 B

x = A^ -1 B

x = -3/2  -5/2      2

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Across times down

-3/2 * 2 + -5/2 *4 = -13

-1 *2 -2 * 4 = -10

The matrix is

-13

-10

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4 years ago
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inn [45]
The answer is (1,1) a liner function
7 0
3 years ago
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