Answer:
The diagonals of an isosceles trapezoid are congruent.
The bases of a trapezoid are parallel.
The answer is -4/7
First, you distribute the -3 and -5 through the parentheses.
-6x+6-15x-15=3
Then combine like terms
-21x-9=3
Do opposite operation
9+3=12
That leaves
-21x=12
Divide both side by -21
X= -4/7
9514 1404 393
Answer:
x = 39
Step-by-step explanation:
The Pythagorean theorem tells you the sum of the squares of the sides of a right triangle is the square of the hypotenuse.
x² +80² = 89²
x² = 89² -80² = 7921 -6400 = 1521
x = √1521
x = 39
