Answer:
Golf ball
Step-by-step explanation:
The formula for the surface area of a sphere is 4
r². The variable is the radius. Therefore, the sphere with the smallest radius would have the smallest surface area.
Answer:



Step-by-step explanation:
By the triangular law of vector addition:


We have that;



From triangle ABC,

Again from triangle XYB




Answer:
Step-by-step explanation:
Answer:
$890.4
Step-by-step explanation:
840 + .06(840)
840 + 50.4
890.4
Answer:
+ or - square root of 5, and + or - i
Step-by-step explanation:
(x^2 + 5)(x^2 + 1)= 0
Set each set of parentheses equal to zero:
x^2 + 5 = 0; x^2 = -5, so x will equal plus or minus i times the square root of 5.
X^2 +1 = 0; x^2 = -1, so x will equal plus or minus i times the square root of one, which is just i