Complete question is;
Andrea is given ABC and told that a² + b² = c². She draws right triangle RTS with legs measuring a and b and hypotenuse measuring 2. Which best describes what Andrea should
do in order to prove that ABC is a right triangle?
Answer:
Andrea should show that c = 2, so: ∡ABC = ∡RTS and ∡C = ∡S. Hence, ∡C is a right angled triangle, hence ΔABC is a right triangle
Step-by-step explanation:
In this question, we are told that the given sides of the triangle are a, b and c. Now, Andrea is able to draw the two sides of the right triangle with sides = a and b and the third, hypotenuse equal to 2. Since the length of the hypotenuse = 2, then we have;
2² = a² + b²
However, we are told that c² = a² + b²
Therefore, c = 2
Hence, Andrea should show that c = 2 so ΔABC = ΔRTS and ∡C = ∡S hence ∡C is a right angled triangle since it is the angle opposite to the hypotenuse c and therefore, ΔABC is a right triangle.
Answer:
x = -4
Step-by-step explanation:
So we start with the equation -6x - 7 = -1(-9 + 2x)
Then we distribute the -1 to the -9 and the 2x so we get: -6x - 7 = 9 - 2x
Now we make the x-values on one side and the numbers on the other side like this:
-6x + 6x - 7 - 9 = 9 - 2x + 6x - 9
-16 = 4x
Now we divide 4 / -16 which gives us x = -4
-16/4 = 4x/4
x = -4
Your welcome
Step-by-step explanation:
=z(-5-y)+x+1
= -5(-5-1)+(-6)+1
=25+5-6+1
=25
hope it helps.
Answer:
Rational numbers have decimals that terminate and or repeat and irrational ones do not they are like 1.539975472648097
Step-by-step explanation:
