X2-8x+21 = x² - 8x + (8/2)²- <span><span>(8/2)²</span> + 21
</span>
<span>= (x² - 8x + 16 ) - 16 + 21
= (x - 4)²+ 5
</span>
7000 = 7 x 1000 = 7 x 10^4
Answer: 7 x 10^4
Area of a square of side x = x^2.
If this area is 100 m^2, 10^2 m^2. The length of one side of this square
is the sqrt of 10^2 m^2, or x=10m.
Answer:
I'm pretty sure the answer is A
Answer:
I'm just gonna tell you the answer and you'll have to show the work on your own. A penny doubled everyday for a month equals a little over $5 million dollars. So you would want to go with the second option.
Step-by-step explanation: