The discriminant of a quadratic equation is -7. Classify the number and type of roots.
1 answer:
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Answer:
7√3
Step-by-step explanation:
We can use pythagoreans theorem to solve this
Since, we know one side, and the hypotenuse, we can solve for the other side.
Pythagoreans theorem: a²+b²=c²
Where a and b are two sides, and c is the hypotenuse (the side opposite of the right angle)
In this triangle, 7 is the side, and 14 is the hypotenuse.
I will plug in the values into pythagoreans theorem, and then simplify:
So x = 7√3
Answer:
Option E 15 cm
Step-by-step explanation:
we know that
The circumference of a circle subtends a central angle of 360 degrees
so
using proportion
Find out the length of arc DE by a central angle of 45 degrees
Let
x -----> the length of arc DE
Answer:
813 = 800 + 10 + 3 = (8 ) + ( 1
) + ( 3
)
Step-by-step explanation:
i) 813 = 800 + 10 + 3 = (8 ) + ( 1
) + ( 3
)