perimeter = sum of all sides
27 = 9+7.8+x
x (third side) = 10.2
No she did not because 8 feet converted to inches is 96in. So, she is 4 inches short of 100! :-)
Answer:
A. and C. neither of them have a repeating y value if you input a vertical line on the graph
Answer:
a = 13.8
(missing length of triangle = 13.8 meters)
Step-by-step explanation:
The side lengths of a triangle can be related using the Pythagorean Theorem;
a² + b² = c²
where
a = one side length
b = other side length
c = hypotenuse (long side --across from 90° angle)
So, by plugging our values into the Pythagorean Theorem, we can solve for a:
a = unknown
b = 18.4
c = 23
a² + b² = c²
a² + 18.4² = 23²
a² + 338.56 = 539
- 338.56 - 338.56 {subtract 338.56 from both sides to isolate a}
a² = 190.44
√a² = √190.44
a = 13.8
so, the missing length of the triangle is 13.8 m
hope this helps!!
Answer:
x = ±6i
Step-by-step explanation:
x^2 = -36
Take the square root of each side
sqrt(x^2) = ±sqrt(-36)
We know that sqrt(ab) = sqrt(a)sqrt(b)
x = ±sqrt(-1) sqrt(36)
We know that sqrt(-1) = i
x = ±i 6
x = ±6i
