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USPshnik [31]
3 years ago
5

Solving Simultaneously equations 3. 2x + 3y = 1 -x + 2y = - 4

Mathematics
2 answers:
enot [183]3 years ago
7 0

Answer:

2x5y7

Step-by-step explanation:

Stels [109]3 years ago
7 0
2x5y7 and good luck on your hw/test
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I'd really appreciate it if someone could help me with these square problems :/
adelina 88 [10]
I would but I don’t want to ;/
3 0
3 years ago
Explain solving systems of equations using substition?
Nitella [24]

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8 0
3 years ago
The quotient of 9.2 x 10 6 and 2.3 x 10 2 expressed in scientific notation is
Virty [35]
What we know:
quotient 9.2 x 10^6/ 2.3 x 10²
in quotients exponents are subtracted of they have the same base, for example 10^6 and 10² have the same base of 10

What we need to find: quotient 9.2 x 10^6/ 2.3 x 10²
9.2 x 10^6        
--------------  =    4 x 10^4    
 2.3 x 10²

Here in this problem I divided 9.2 by 2.3 and got 4, since the solution was simple and clean meaning no repeated decimals I went ahead and divided the 10^6 by 10^2 and got 10^4.


Another method would be to expand both numbers then divide and do scientific notation again.
Remember to change to normal notation you move the decimal to the right using the number of the exponent.

9.2 x 10^6= 9200000
2.3 x 10²= 230

920000/230=40000

40000= 4 x 10^4 scientific notation

Use the method that is best for you or just know you can use either method to check your work.

4 0
3 years ago
What is the surface area in square inches of a cube with a side 7<br> inches long?<br> 10
SVETLANKA909090 [29]

Answer:

28

Step-by-step explanation:

7x4

5 0
2 years ago
Read 2 more answers
Evaluate 8 • 3^x for (a) x = -2 and (b) x = 3. Write your<br> answers in simplest form.
Levart [38]

Answer: 216

Step-by-step explanation:

6 0
3 years ago
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