Answer: 9.25
Step-by-step explanation:
Answer:
32
Step-by-step explanation:
Given
-x (y + z)
If y = -3
x = 4 and
z = -5
Substitute the respective values into the expression
-(4) (-3 + -5)
Positive negative when combined gives negative
-4 ( -3 - 5)
Simplify the bracket
-4 (-8)
-4 x -8
Negative negative gives positive
32
A) 25% = 25/100 = 0.25
b) 18% = 18/100 = 0.18
c) 40% = 40/100 = 0.40
d) 2% = 2/100 = 0.02
e) 0.15% = 0.15/100 = 0.0015
The answer is B :)
Hope this helped :)
Answer:
The diameter decreases at a rate of 0.053 cm/min.
Step-by-step explanation:
Surface area of an snowball
The surface area of an snowball has the following equation:

In which d is the diameter.
Implicit differentiation:
To solve this question, we differentiate the equation for the surface area implictly, in function of t. So

Surface area decreases at a rate of 3 cm2/min
This means that 
Tind the rate (in cm/min) at which the diameter decreases when the diameter is 9 cm.
This is
when
. So




The diameter decreases at a rate of 0.053 cm/min.