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Vlad1618 [11]
4 years ago
7

Answer this pic please and explain how to do it

Mathematics
1 answer:
yuradex [85]4 years ago
5 0

Balancing of equations as shown in the attached document requires that the number of atoms, of an element, on the left of the equation is equivalent to the number of the atoms of the same element on the right of the equation. This is in observation of the conservation of mass rule of thermodynamics. Mass and energy cannot be destroyed nor created, it can only be transformed from one form to another. In this case, mass remains the same in the system since this is a chemical reaction- only the bonds between atoms are being rearranged.

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Here’s a revenue and expenses for the month.caculate whether Mia had a profit or a loss
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Answer:

Mia had a profit

Step-by-step explanation:

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3 years ago
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Rewrite the rational equation with the given denominator. 12/x(x+4) = ?/x(x+4)(x-9)
levacccp [35]

Answer:

12(x-9)

Step-by-step explanation:

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4 years ago
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See the ​attached file.
Masja [62]

f(x) = 4x - x^2

1)

f(4) = 4(4) - 4^2 = 16 - 16 = 0

f(-4) = 4(-4) - (-4)^2 = -16 - 16 = -32

f(4) - f(-4) = 0 - (-32) = 32

2)

f(3/2) = 4(3/2) - (3/2)^2

f(3/2) = 6 - 9/4 = 15/4

√f(3/2) = √(15/4) = √15 / 2

3)

f(x + h) = 4(x + h) - (x + h)^2

= 4x + 4h -(x^2 + 2xh + h^2)

= 4x + 4h -x^2 - 2xh - h^2

f(x - h) = 4(x - h) - (x - h)^2

= 4x - 4h -(x^2 - 2xh + h^2)

= 4x - 4h -x^2 + 2xh - h^2

So

[f(x + h) -f(x - h) ] / 2h

= [4x + 4h -x^2 - 2xh - h^2 - ( 4x - 4h -x^2 + 2xh - h^2 )] / 2h

=( 4x + 4h -x^2 - 2xh - h^2 - 4x + 4h + x^2 - 2xh + h^2 ) / 2h

= (8h - 4xh) / 2h

= 2h(4 -2x) / 2h

= 4 - 2x

Answer: [f(x + h) -f(x - h) ] / 2h = 4 - 2x

3 0
3 years ago
In a study, researchers found that for every 3 people who preferred band A toothpaste 1 person preferred band B toothpaste. Whic
oksian1 [2.3K]
C) 3:1

For every 3 people who prefer band A toothpaste 1 person preferred band B toothpaste:

3 to 1=3:1.
8 0
4 years ago
Ms. Bell's mathematics class consists of 14 sophomores, 6 juniors, and 10 seniors.How many different ways can Ms. Bell create a
prohojiy [21]

Ms. Bell's mathematics class consists of 14 sophomores,

Ms. Bell create a 4-member committee of sophomores

if each sophomore has an equal chance of being selected

this is a combination

\begin{gathered} ^{14}C_4=\frac{14!}{4!(14-4)!} \\ =\frac{14!}{14!\times10!} \\ =1001 \end{gathered}

The answer is 1001.I’ve completed answering the question.

8 0
1 year ago
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