Answer:
A the first one
Step-by-step explanation:
Hello!
6.
Since the area is that of a square, you know that all side lengths are the same.
Area is base times height (A = bh), but since base and height are the same for a square, you get the formula A = a².




The length of the side of a square with an area of 144 in² is
12 in.
7.
Rational number.
8.
This is a right triangle; use the Pythagorean Theorem to find missing lengths of right triangles. Pythagorean Theorem: a² + b² = c², where c is the hypotenuse of the triangle.
Plug in your leg lengths:
a² + b² = c²
8² + x² = 21²
64 + x² = 441
x² = 377
x = 19.4
An exponential function displays either a growth or decay behavior going from a low steep to a high steep.
Answer:
300
Step-by-step explanation:
find the sum of area of all sides
Answer:
A leg.
Step-by-step explanation:
The hypotenuse is always the side that is across from the corner. In this triangle, the hypotenuse is 14.