Surface area of sphere equals its four radii squared multiplied by the number π.
We have then:
A = 4 * π * R ^ 2
Substituting:
804 = 4 * π * R ^ 2
Clearing the value of R we have:
R = root (804 / (4 * π))
R = 7.99876785 cm
Nearest whole number:
R = 8 cm
Answer:
The radius of a sphere is:
B. 8cm
Answer:
a. True, because they are corresponding angles.
b. False, because angles 1 and 2 are supplementary, meaning that they add up to 180 degrees, but 125 + 65 = 190 degrees.
c. True, because they are corresponding angles.
d. True, becuase they are two angles that add up to 180 degrees.
e. True, because they are both interior angles on opposite sides of the transversal.
(9x⁴ - x²y² - 5y⁴<span>) - (3x</span>⁴ + 2x²y² - 7y⁴<span>)
</span>9x⁴ - x²y² - 5y⁴ - 3x⁴ - 2x²y² + 7y⁴
6x⁴ - 3x²y² + 2y⁴
Answer:
hgrtghjthweg
Step-by-step explanation:
Answer:
the value if x is 15
Step-by-step explanation:
Use Pythagoras theorem
x² = (x - 3)² + 9²
x² = x² -3x -3x + 9 + 81
x² = x² -6x + 90
x² - x² + 6x = 90
6x = 90
divide through by 6
x = 90/6
x = 15