Answer :
Given that the base of the triangle is x m, the height is 3m less than twice it's base then the height will be represented by the equation:
(2x-3) m
Thus the area will be:
Area=1/2bh
Area=1/2x(2x-3)=17.5
x^2-1.5x=17.5
Writing the above equation is quadratic form of ax^2+bx+c=0 we get:
x^2-1.5x-17.5=0
Answer:
3/4
Step-by-step explanation:
you do change in y over change in x which is 7-4 over 3+1
when you do the calculations you get 3/4
Answer:
Step-by-step explanation:
8.7% of 5300 is 461.1
Rounding up to the nearest hundredth gives your answer as
500
Answer:
D. D
Step-by-step explanation:
Where -1.9 is!!
The question states the : opposite of the opposite.
So- we find the opposite of (-1.9) =1.9 and the opposite of that is = -1.9.
So- it is situated at -1.9
Hope this helps!! =)
Answer:
The concentration of HCl in the mixture is 1L of 50% HCl
Step-by-step explanation:
Here, we want to know the percentage of HCl present which refers to the its concentration.
Firstly, the total volume we have is 0.375 + 0.625 = 1 L
we can calculate the percentage as follows;
The percentage of the 25% present is 37.5%
while the percentage of the 75% present is 62.5%
When we say the percentage present, we are referring to the amounts of the total liters which is 1 present.
So the concentration of the final mixture will be;
(37.5% of 25) + (62.5% of 65)
= 9.375% + 40.625%
Adding both gives = 50%
So the concentration we have is 1L of 50% HCl