Answer: The answer is 8.
Step-by-step explanation: The first step is to convert the expression into figures. We shall call the unknown number Y. So if we are told “the square of a number,” that means Y squared, or better still, Y^2. Further we are told “the difference between the square of a number and 40” and that can be written as;
Y^2 - 40.
Next we are told that this expression is equal to 3 times that number (that is 3Y). That can now be written out as follows,
Y^2 - 40 = 3Y
If we move all expressions to one side of the equation, what we would have is,
Y^2 - 3Y -40 = 0
(Remember that when a positive value crosses to the other side of an equation it becomes negative and vice versa)
We now have a quadratic equation
Y^2 -3Y - 40 = 0
By factorizing we now have
(Y -8) (Y + 5) = 0
Therefore Y - 8 = 0 or
Y + 5 = 0
Hence, Y = 8 or Y = -5
Since we are asked to calculate the positive solution, Y = 8
7/10 because it equals 70 percent
1. I have a dig bick
2. You that read wrong
3. You read that wrong too
4. You checked number 3 if it was wrong
6. Your smiling on the inside
7. Number 5 was right
8. You checked
9. There wasn’t number 5
10. Look left———>
11. U said left idiot
Answer:
18.25m
Step-by-step explanation:
Subtracting the two Vectors we have
= 3ti - 4ti + t^2j - - t^2j
=- 1ti + 2 t^2j
= The distance between the lines is given by
= Squaroot of ( ( -3)^2 +( 2(3)^2 )^2
= Squaroot of 9 +324
= Squaroot of 333
= 18.25m
Answer:
10 1/6
Step-by-step explanation:
first get 8 3/4 to a common denominator
8 3/4 *3/3= 8 9/12
8 9/12+ 1 5/12=9 14/12= 10 2/12= 10 1/6
