What is the question asking specifically? (:
Answer:
y = 8
x = 8√5
z = 4√5
Step-by-step explanation:
Using the formula (which is a geometric mean):
a y
---- = -----
x a
Where a is the altitude (y), x is a projection (16), and y is the other projection (4):
y 4
---- = -----
16 y
Cross multiply:
y² = 16 (4)
y² = 64
√y² = √64
y = 8
To find x and z, use the Pythagorean Theorem:
16² + y² = x²
256 + 8² = x²
256 + 64 = x²
320 = x²
√320 = √x²
√64√5 = √x²
8√5 = x
x = 8√5
4² + y² = z²
16 + 64 = z²
80 = z²
√80 = √z²
√16√5 = √z²
4√5 = z
z = 4√5
Answer:
f(x) = 5(4)^x
Step-by-step explanation:
A coefficient multiplies a variable. The 5 is a coefficient.
A variable is a letter that stands for a number. The x is a variable.
A base is a number that is raised to an exponent. The 2 is a base.
An exponent is what you raise a base to. The 3 is an exponent.
Answer:
-48
Step-by-step explanation:
12 x 4= 48 just add negative sign to 48.
Hope this helps :3
