Answer:
Step-by-step explanation:
A. 4.2E6 because when putting a number into scientific notation, you would want one number in front of the decimal place and then the trailing numbers would follow. The exponent or E stand for how many numbers are after the decimal, which in this case would be 6.
4,200,000 → 4.2 x 10^6 which is equal to saying 4.2E6
Tip: If the exponent is negative than the decimal would go in the opposite direction. For example:
4,200,000 → 4.2 x 10^-6 would not equal each other because 4.2 x 10^-6 means 0.000004, six numbers would be behind the decimal.
I think is B but idk how to do this but I could try
Answer:
4(2x+3)
Step-by-step explanation:
8x+12
4(2x+3)
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Note that 8x+12=4(2x+3),
because we factored out 4.
Sal's answer is wrong because even though 2(4x+6)=8x+12,
but the answer 4(2x+3) is more reasonable,
because our goal is to find the largest number when factoring an expression.
Answer: x = 16
Step-by-step explanation:
2(x - 6 ) = 20 Apply the distributive property
2x - 12 = 20 Add the 12 to both sides
+12 +12
2x = 32 Divide both sides by 2
x = 16