Complete question:
At the beginning of the day the stock market goes down 30 3/4 points and stays at this level for most of the day. At the end of the day the stock market goes up 100 1/2 points from the low at the beginning of the day. What is the total change in the stock market from the beginning of the day to the end of the day?
Answer:
The total change in the stock market is ![69\frac{3}{4}](https://tex.z-dn.net/?f=69%5Cfrac%7B3%7D%7B4%7D)
Step-by-step explanation:
Given;
the stock market at the beginning of the day = 30 3/4 points
the stock market at the end of the day = 100 1/2 points
The total change in the stock market from the beginning of the day to the end of the day is given by;
100 1/2 points - 30 3/4 points
![= (100 -30) + (\frac{1}{2} -\frac{3}{4} )\\\\= 70 + (-\frac{1}{4} )\\\\= 70 - \frac{1}{4}\\\\= 69\frac{3}{4}](https://tex.z-dn.net/?f=%3D%20%28100%20-30%29%20%2B%20%28%5Cfrac%7B1%7D%7B2%7D%20-%5Cfrac%7B3%7D%7B4%7D%20%29%5C%5C%5C%5C%3D%2070%20%2B%20%28-%5Cfrac%7B1%7D%7B4%7D%20%29%5C%5C%5C%5C%3D%2070%20-%20%5Cfrac%7B1%7D%7B4%7D%5C%5C%5C%5C%3D%2069%5Cfrac%7B3%7D%7B4%7D)
Therefore, the total change in the stock market is ![69\frac{3}{4}](https://tex.z-dn.net/?f=69%5Cfrac%7B3%7D%7B4%7D)
Answer:
C<B<A
Step-by-step explanation:
C Is smallest
The square root of 400 is 20 so its in the middle
And A is the biggest
C is less than B
B is less than A
Answer:
15x^2-14x-4
Step-by-step explanation:
(8x^2 * x-7x+2)+(7x^2 -7x-6)
you take out the parentheses
you add the common ones so -7x+-7x= -14x
8x^2 +7x^2 = 15x^2
and 2-6= -4
so in total it's 15x^2-14x-4
Answer:
Quadratic expression
Step-by-step explanation:
5x + 3x^2 − 7
Degree of expression = 2
So it is Quadratic expression