342.21 rounded to the nearest tenth is 342.2. 49.29 rounded is 49.3. So 342.2 - 49.3 = 292.9
X^3 +x^2 +x +1 = x^2(x +1) + x +1 = (x^2 +1)(x +1)
hope helped
Answer:
First Question:
0042=4210000=42104=42⋅1104.
Recall that 1ab=a−b and vice versa,
so we can write 42⋅1104=42⋅10−4 .
The correct option is (D)
Second Question:
6120 is your answer
Take the decimal in 6.12 and move it to the right three times. You should get your answer.
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4-7x=39
-4 = -4
7x=35
÷7. ÷7
35 divided by 7 equals 5. Therefore x=5. So, 5+1=6
Your final answer is 6.
