Answer:
t=-10 or t=20
Step-by-step explanation:
We want to solve the equation:
We use the definition of the absolute value function to get:
Divide through the first equation by -1 to get:
We now add 15 to both sides of the equation to get:
Divide through by 3
Answer:
Sa = 1.5*V
Step-by-step explanation:
We have that the surface area of a sphere has the following formula:
Sa = 4*pi*r^2
we know that r = 2, so if we replace it, we're left:
Sa = 4*pi*(2^2)= = 4*pi*4
Sa = 16*pi
Now, the volume has the following formula:
V = 4/3*pi* r^3
Replacing it is our job:
V = 4/3*pi* (2^3) = 4/3*pi*8
V = 32/3*pi
Now, Sa/V, it would remain:
Sa/V = 16*pi / 32/3*pi
Sa/V = 48/32 = 1.5
Therefore, Sa = 1.5*V
Answer:
21
Step-by-step explanation:
6 * 4 - 3 = (6 * 4) - 3 = (24) - 3 = 21
Multiplication first, and then subtract.
Step-by-step explanation:
The Alps were born 770 million years ago.
Hope this helps..
