Answer:
4
Step-by-step explanation:
Let the value of BD be x.
Therefore, CD=6 - BD=6-x
As, speed is same, so the distance will be equal
Thus, 5+x=7+(6-x)
x=4
BD=4
Answer:
45238.9 sq m
Step-by-step explanation:
The surface area of a sphere can be found with the equation : 4 *Pi * r^2.
Just input the radius into this equation and you've got your answer.
Answer:
The angle of rotation is 214°.
Step-by-step explanation:
Formula for arc length:
The length of arc is the product of radius and the central angle ( in radian).
L= rθ
L= Length of arc
r= Radius
θ= Central angle (in radian).
Here L= 280 feet and diameter =150 feet.
Radius feet =75 feet
L= rθ
radian.
We know that,
π radian= 180°
= 214°
The angle of rotation is 214°.
All real numbers
distribute (x+6)(x+3) to get x^2+6x+3x+18
your equation now looks like this:
x^2+6x+3x+18= x^2+6x+3x+18
because the equations are equal, the answer is all real numbers