Use the quadratic formula .
x^2-2x+11=0
a=1
b=-2
c=11
x=-2+- (-2)^2-4*1*11 divided by 2
x=2+- the square root of -40 divided by 2
There is no real solutions
Place a decimal point between the first two digits (4 and 8). Erase the commas and the 0s. So you'll have 4.86 left over after you've done that erasing.
Now ask yourself: "how many places to the right must I move the decimal to get 4.86 to turn back to 48,600,000?"
That would be 7 places to the right. That 7 is the exponent over the 10
<h3>Therefore, the answer is 4.86 * 10^7</h3>
This number is 48.6 million
Answer:
B. 75
Step-by-step explanation:
1.5% of 5000 is 75
Answer:
The number 10/7 is a rational number, which means it can be expressed as a fraction. Also, if we divide it would give a decimal infinite periodical number, which means it has a pattern on its decimal numbers.
On the other hand, the square root of 2 is irrational number, that means it can't be expressed as a fraction, because its decimal numbers don't have any pattern at all.
So, Mai's brother can see these type of numbers as crazy (irrational numbers) and sane (rational numbers).
At last, another important characteristic to shows that they aren't equal is that they don't have the exactly decimal numbers.
The last one. In arithmetic sequence, the difference between the terms is constant, in this case, the difference is 3
