Answer:
0.16 π
Step-by-step explanation:
Using the area formula pi*r^2 we can find the area of the circle, plugging in the numbers gets us pi*(0.4)^2 = 0.16 π
The circumference of a circle with radius

is

. If the length of the radius is tripled, then the circumference becomes

, which is just 3 times the original circle's circumference.
Answer: 6 cups of ketchup per cup of mustard
Step-by-step explanation:
Given : The recipe calls for 3 cups of ketchup for every
cup of mustard.
That means , for
cup of mustard. we need 3 cups of ketchup.
By using proportions, if we multiply 2 on both sides ,we get
for
cup of mustard. we need
cups of ketchup.
⇒ for
cup of mustard. we need
cups of ketchup.
Hence, the required rate = 6 cups of ketchup per cup of mustard
1.

2.

3.
4.
4 is the only function that decreases as it approaches
both infinities.