Answer:The ansewers are c and d.
Step-by-step explanation:
The function f(x)=x is really y=x.
8/16. 3/16. 14/16........
The value of x is 55°
Step-by-step explanation:
Given figure is a parallelogram.
In a parallelogram, the opposite sides are equal and parallel and the opposite angles are equal.
This means that,
in the given parallelogram
m∠A=m∠C=x°
m∠B=m∠D=(2x+15)°
The sum of interior angles of a parallelogram is 360 degrees.
So,
m∠A+m∠B+m∠C+m∠D=360°
Putting the values of angles

The value of x is 55°
Keywords: Parallelogram, angles
Learn more about parallelograms at:
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Use the quadratic formula -b +/-√(b^2-4(ac)) / 2a
In the given formula a = 7, b = 23 and c = -10
Replace the letters with their values:
-23 +/-√(23^2 -4*(7*-10)) / 2*7
Simplify to get:
x = -23 + √809 / 14 or x = -23 - √809 / 14