706,421 rounded to the nearest thousand is 706,000 because the 421 is less than 500 so the 6 would remain a 6.
Both of your answers are correct. In the first equation, if you were to substitute 3 for x, because you have to do exponents first, you have 3^2, which is 9, and 9*6 =54. If you were to substitute -3 for x again you would have to do the exponents first which would be -3^2 which is 9, and 9*6 = 54.
For the second question, if I substitute 0.75 for t, I get -9 + 18 + 7. This is equal to 16, and therefore the answer would be D. Hope this helps! :D. Let me know if you have questions about my explanation, and feel free to post more questions.
Answer:
45^0.999
Step-by-step explanation:
The bases are equal so we wont divide them, we shall only divide the exponents.
<em>2799/2800=0.999</em>
<em>hope it helps</em>
Answer:
63 is 90% of 70
Step-by-step explanation:
multiply 70 x .9 or 70(.9)
