With the first problem: You always divide from the left, then the rigth. 2+246/6 = 246/6=41 41+2=43
Answer:
B
Step-by-step explanation:
In the case of this distance, trying to imagine 5 x 10^6 is obviously way too ridiculous
Answer:
A: This polynomial has a degree of 2 , so the equation 12x2+5x−2=0 has two or fewer roots.
B: The quadratic equation 12x2+5x−2=0 has two real solutions, x=−2/3 or x=1/4 , and therefore has two real roots.
Step-by-step explanation:
f(x) = 12x^2 + 5x - 2.
Since this is a quadratic equation, or a polynomial of second degree, one can easily conclude that this equation will have at most 2 roots. At most 2 roots mean that the function can have either 2 roots at maximum or less than 2 roots. Therefore, in the A category, 2nd option is the correct answer (This polynomial has a degree of 2 , so the equation 12x^2 + 5x − 2 = 0 has two or fewer roots).
To find the roots of f(x), set f(x) = 0. Therefore:
12x^2 + 5x - 2 = 0. Solving the question using the mid term breaking method shows that 12*2=24. The factors of 24 whose difference is 5 are 8 and 3. Therefore:
12x^2 + 8x - 3x - 2 = 0.
4x(3x + 2) -1(3x+2) = 0.
(4x-1)(3x+2) = 0.
4x-1 = 0 or 3x+2 = 0.
x = 1/4 or x = -2/3.
It can be seen that f(x) has two distinct real roots. Therefore, in the B category, 1st Option is the correct answer (The quadratic equation 12x2+5x−2=0 has two real solutions, x=−2/3 or x=1/4 , and therefore has two real roots)!!!
C.24 is supplementary to 7
The time it will take for Tyler to finish planting tomatoes alone is; 75 minutes
<h3>
Understanding Work Proportion</h3>
We are told that three people are planting tomatoes in a community garden. The time each alone takes to plant are;
Thus, their individual rates are;
Since together, they take 20 minutes, then it means that;
1/50 + 1/x + 1/(x + 15) = 1/20
Multiply through by x(x + 15) to get;
(x² + 15x)/50 + (x + 15) + x = (x² + 15x)/20
Multiply through by 100 to get;
2(x² + 15x) + 100(x + 15) + 100x = 5(x² + 15x)
100x + 1500 + 100x = 5(x² + 15x) - 2(x² + 15x)
200x + 1600 = 3x² + 45x
3x² - 155x - 1600 = 0
Solving this using quadratic formula calculator online gives;
x ≈ 60
Thus, the time it will take tyler alone to finish is;
60 + 15 = 75 minutes
Read more about Work Proportion at; brainly.com/question/1781657
