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Olenka [21]
3 years ago
12

a+solution+of+salt+and+water+contains+75+grams+of+water+per+150+mililiters+of+the+solution.+if+1+mole+of+water+weighs+16+grams,+

how+many+moles+of+water+would+be+present+in+30+mililiters+of+the+solution
Mathematics
1 answer:
bazaltina [42]3 years ago
5 0
A solution of salt and water contain 75 grams of water per 150 millimeters of the solution. If 1 mole of water weight 16 grams, how many moles of water would be present in 30 mil liter of the solution.
Kindly mark as brainliest
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Plz help!!!! Geometry
never [62]

The little lines inside the two angles mean they are the same.

The 3 inside angles of a triangle equal 180 degrees.

One angle is 146 , so the other two need to equal 180-146 = 34 total.

34/ 2 = 17

Both angle 1 and angle 2 are 17 degrees each.

8 0
3 years ago
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In a regular seven-sided polygon, how many diagonals can be drawn from one vertex?​
Sergeu [11.5K]

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14

Step-by-step explanation:

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3 years ago
Find all zeros of function and write the polynomial as a product of linear factorsX^3-x^2+9x-9
mart [117]

Answer:

\large\boxed{x=1\ \vee\ x=-3i\ \vee\ x=3i}

Step-by-step explanation:

\text{The zeros:}\\\\x^3-x^2+9x-9=0\\\\x^2(x-1)+9(x-1)=0\\\\(x-1)(x^2+9)=0\iff x-1=0\ \vee\ x^2+9=0\\\\x-1=0\qquad\text{add 1 to both sides}\\x-1+1=0+1\\\boxed{x=1}\\\\x^2+9=0\qquad\text{subtract 9 from both sides}\\x^2=-9

8 0
4 years ago
4% as a fraction or mixed number in simplest form
IgorC [24]

Answer:

1 /25

Step-by-step explanation:

percent means  

out of 100

 

⇒

4

%

=

4

100

as a fraction

To simplify the fraction we require to find a  

common factor

to both 4 and 100 and reduce the fraction by dividing. The common factors are 2 and 4 . Choose the largest, that is 4

⇒

4

100

=

4

÷

4

100

÷

4

=

1

25

This calculation is usually set out using  

cancelling

4

100

=

4

1

100

25

=

1

25

←

in simplest form

A fraction is in  

simplest form

when no other factor but 1 will divide into the numerator/denominator.

6 0
3 years ago
What is the opposite? 1) -10 2) -35 3) 124) 100 5) 1 6) X
torisob [31]

Solution

The opposite of a is just -a, taking in count this definition we have this

1) -(-10)=10

2) -(-35)=35

3) -12

4) -100

5) -1

6) -X

7 0
1 year ago
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