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shusha [124]
3 years ago
5

Which equations are balanced? Select four options.

Mathematics
1 answer:
Natalija [7]3 years ago
3 0

Answer:

C3H8 + 5O2 → 3MgO + 2NH3

Zn + 2HCl → ZnCl2 + H2

Ca(OH)2 + 2H3PO4 → Ca3(PO4)2 + 6H2O

4Al + 3O2 → 2Al2O3

Step-by-step explanation:

I have the exact same question and I got the answers correct.

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Fantom [35]
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8 0
4 years ago
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A 20 packet box of detergent sells for $5.49. What is the unit rate
jolli1 [7]

Answer:$0.27

Step-by-step explanation:

20=$5.49

1=20/5.49

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6 0
3 years ago
Multiply and simplify the product.
DaniilM [7]

Answer:

B

Step-by-step explanation:

We have the expression:

(3-5i)(-2+4i)

Distributive Property:

=(3-5i)(-2)+(3-5i)(4i)

Distribute:

=(-6+10i)+(12i-20i^2)

Simplify:

=(-6+10i)+(12i-20(-1))

Simplify:

=-6+10i+12i+20

Combine like terms:

=(-6+20)+(10i+12i)

Simplify:

=14+22i

Hence, our answer is B.

8 0
3 years ago
Read 2 more answers
How many solutions does the system of equations have Y = 4x+3 and 2Y-8x = 3
just olya [345]

Answer:

The system has no solution.

Step-by-step explanation:

Write the system as

y - 4x =3

2y - 8x = 3

The 2nd equation can be written as

2(y - 4x)

and the system would be

y - 4x =3

2(y - 4x) = 3

Now, call y -4x = z. Then we would have the system

z = 3

2z = 3

But if z =3 then 2z = 6 and we have a contradiction.

We conclude that the system has no solution.

7 0
4 years ago
What is the volume of model A and round to the nearest whole number
Stells [14]

Answer:

A=582.94, so 583.

Step-by-step explanation:

<em>MERRY CHRISTMAS,</em>

<em>Hope that helped :)</em>

8 0
3 years ago
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