Answer:
x = -2, y = 3
Step-by-step explanation:
2x + y = -1
3x - y = -9
2x + y + 3x - y = -1-9
5x = -10
x = -2
2(-2) + y =-1
-4 + y = -1
y = 3
Expressing a number in standard form refers to the generally accepted format of expressing numbers in their ordinary form.
Large numbers written in scientific notation can be converted to standard form by writing out the numbers in full instead of raising to the power of 10.
For instance, the number 4.325 × 10³ written in scientific notation can be expressed in standard form thus :
- 4.325 × 10³
- 10³ = (10 × 10 × 10)
- 4.325 × (10 × 10 × 10) = 4.325 × 1000 = 4325
Therefore, 4.325 × 10³ is 4325 in standard form
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Answer:
4b
Step-by-step explanation:
i dont know what b is so b*4 is 4b
