Answer: 71 degrees.
Step-by-step explanation:
Due to the triangle being isosceles (Two sides are equal), we can assume that the angles will also be equal.
You can take 180 (The total of a triangle) and subtract by the known degree
180 - 38 = 142
Now we divide 142 by two, ONLY because this is case; both angles will be the same degree.
142 / 2 = 71
Therefore; x = 71
Answer:
U were 20% off
Ure estimate was 80%
Step-by-step explanation:
16/20 is 80%
100%-80% is 20%
True, because a parallelogram is a four-sided rectangular figure with opposite sides parallel. This is a way to describe a rectangle as well. The only difference is that rectangles must have 90 degree angles, but it is possible for a parallelogram to have 90 degree angles as well. This also means that all rectangles are technically parallelograms as well.
This is the solution of the equation, where a=1, b=-5, c=7
So the discriminant is :
b^2-4ac=25-4*7= -3
The square root of -3 is non-real, this both solutions are non-real.
Answer:
(x - 5)² = 39
Step-by-step explanation:
Given
x² - 10x = 14
To obtain an equivalent equation use the method of completing the square.
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 5)x + 25 = 14 + 25
(x - 5)² = 39
