Answer: 66 degrees
Step-by-step explanation:
Sum of the angle measures is 180, so:
71 + x + 49 + x + 72 = 180
2x + 192 = 180
2x = -12
x = -6
Meaning the measure of angle A = -6 + 72 = 66 deg.
Answer: The value of a is 1. The value of b is -1. The value of c is 1. The value of the discriminant is -3. The quadratic function will not intersects the x-axis.
Explanation:
The standard form of a quadratic equation is,

The given function is,

It can be written as,

By comparing this equation with the standard form of quadratic equation. we get,



The formula for discriminant is,




The value of the discriminant is -3.
If D<0, it means the function have no real roots.
If D=0, it means function have one real roots.
If D>0, it means function have two real roots.
Since D<0 it means the function have no real roots. So the function will not intersect the x-axis at any point.
Answer:
58.13
Step-by-step explanation:
Answer: His car is slowing down .
Step-by-step explanation:
If there is a reduction in speed, it means his car is slowing down and may be running out of fuel.
Answer:
The upper quartile is 6.
Step-by-step explanation:
FIrst, I found the median of the data, which is 4. Then, I determined the median of the upper half of the data, which is 6. The median of the upper half of the data is known as the upper quartile.