The standard form of a quadratic equation is ,
ax² + bx + c = 0.
And the formula to find the discriminant is b² - 4ac.
Here the first step is to change the given equation into standard form. So, add 1 to each sides of the equation. Therefore,
2x² – 9x + 2+1 = –1 + 1
2x² – 9x + 3 = 0
Next step is to compare the given equation with this equation to get the value of a, b and c.
After comparing the equations we will get a = 2, b = -9 and c = 3.
So, discriminant = b²- 4ac
=( -9)²-4 (2)(3)
= 81 - 24
= 57
So, discriminant of the given equation is 57.
57 is greater than 0 and square root of 57 will result real number.
So, the correct choice is C: The discriminant is greater than 0, so there are two real roots.
For this case we have the following polynomials:
Adding the polynomials we have:
Rewriting we have:
Therefore, the result of the sum is:
Answer:
the sum of the polynomials is:
option 2
Answer:
14.4 kN
Step-by-step explanation:
cantilever balcony 2m wide 0.2m deep and 1.5m length.
= 2 x 0.2 x 1.5
= 0.6 m³
weight of the balcony
= 0.6 x 24
= 14.4 kN.
therefore the max shear 14.4 kN and is acting at support.
Answer:
y= 8x + 4
Steps:
parallel: same slope
m= 8 and y-intercept= 4
y= mx + b
y= 8x + 4
Answer:
A
Step-by-step explanation:
3 + 19 = 22
4 + 19 = 23
5 + 19 = 24
6 + 19 = 25
All sums are less than 28
