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:
2/3
Step-by-step explanation:
Answer:
Circumference is π × diameter
Answer:
x = 9
Step-by-step explanation:
9 to the sixth power = 531441
9 to the third power = 729
531441 = x cubed × 729
Divide by 729 on both sides.
531441 divided by 729 equals 729
729 divided by 729 equals 0
729 = x cubed
Find cube root
9x9x9 =729
Cube root of 729 is 9
x=9
Answer:
i think its D or C but im not sure
Step-by-step explanation:
hope this helped
