Function intercepts the x-axis where y=0
We can now calculate the discriminant and find the roots.
Answer:
Its equal to 1
Step-by-step explanation:
Answer:
The value of 7u + 2 is 9.
Step-by-step explanation:
To solve this problem, we first must find the value of u given the second equation. The first step in simplifying this equation is to subtract 8 from both sides of the equation. This is modeled below:
-2u + 8 = 6
-2u + 8 - 8 = 6 -8
-2u = -2
Next, we can divide both sides by -2 to get the variable u alone on the left side of the equation.
-2u/-2 = -2/-2
u = 1
Therefore, the correct answer is u = 1. Now, we can plug in this value for u into the expression that is given.
7u + 2
= 7(1) + 2
= 9
Thus, the correct answer is 9.
Hope this helps!
answer:
yes, it is a right triangle
step-by-step explanation:
- remember: a triangle can only be a right triangle if it works with the pythagorean theorem
- therefore, we can plug in the numbers we have in the formula
- know the formula: a^2 + b^2 = c^2
- now, plug in
a^2 + b^2 = c^2
6^2 + 8^2 = 10^2
- the largest side is always the hypotenuse
- we have to see if both sides equal to the same value
6^2 + 8^2 = 10^2
36 + 64 = 100
100 = 100
- yes they are equal, therefore it is a right triangle
It is the third answer, square root of 113