Answer:
9
Step-by-step explanation:
p^2 -4p +4
Let p = -1
(-1)^1 -4(-1) +4
1 +4+4
9
You would use the Pythagorean Theorem
a^2 + b^2 = c^2
The sides 'a' and 'b' are the legs of the right triangle. The side c is the hypotenuse or the longest side. In this case, the longest side is c = 61. The other two sides are a = 11 and b = 60. The order of 'a' and 'b' does not matter.
Let's use the substitution property to plug in the given values mentioned and we will get...
a^2 + b^2 = c^2
11^2 + 60^2 = 61^2
121 + 3600 = 3721
3721 = 3721
We get the same number on both sides; therefore, the original equation is true when (a,b,c) = (11,60,61).
This all confirms we do have a right triangle. The right angle is opposite the hypotenuse. This is due to the rule that the largest angle of a triangle is always opposite the largest side.
The answer is 56 ft
The perimeter of the rectangle with width w and length l is:
P = 2w + 2l
We know:
w = 7 ft
l = 3w = 3 * 7 = 21 ft
P = 2w + 2l
P = 2 * 7 + 2 * 21
P = 14 + 42
P = 56 ft
Answer:
the first one
Step-by-step explanation:
have a great day :D