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sdas [7]
2 years ago
5

If Sarah drink 2 cups of water and then drink one more how many cups of water did Sarah drink?

Mathematics
2 answers:
stepladder [879]2 years ago
8 0
The answer to this question is A. 3
gayaneshka [121]2 years ago
5 0

Answer:

A

Step-by-step explanation:

I think its self explanatory?

2+1=3 cups of water?

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Please help me solve this question
inessss [21]

Answer:

length = 23.68 m

perimeter = 15.84m

7 0
3 years ago
The radius of a circle is changing at the rate of 1/π inches per second. At what rate, in square inches per second, is the circl
MAXImum [283]

Answer:

10 square inches per second.

Step-by-step explanation:

The radius of the circle is given by the equation:

r(t) = (1/π  in/s)*t

Where time in seconds.

Remember that the area of a circle of radius R is written as:

A = π*R^2

Then the area of our circle will be:

A(t) = π*( (1/π  in/s)*t)^2 = π*(1/π  in/s)^2*(t)^2

Now we want to find the rate of change (the first derivation of the area) when the radius is equal to 5 inches.

Then the first thing we need to do is find the value of t such that the radius is equal to 5 inches.

r(t) = 5 in =  (1/  in/s)*t

       5in*(π s/in) = t

        5*π s = t

So the radius will be equal to 5 inches after 5*π seconds, let's remember that.

Now let's find the first derivate of A(t)

dA(t)/dt = A'(t) = 2*(π*(1/π  in/s)^2*t = (2*π*t)*(1/π  in/s)^2

Now we need to evaluate this in the time such that the radius is equal to 5 inches, we will get:

A'(5*π s) = (2*π*5*π s)*((1/π  in/s)^2

              = (10*π^2  s)*(1/π^2  in^2/s^2) = 10 in^2/s

The rate of change is 10 square inches per second.

4 0
3 years ago
When you leave one job, it is necessary to give _____.
ELEN [110]

adequate notice of leave

5 0
3 years ago
Read 2 more answers
Find the surface area of the pyramid
cricket20 [7]

Answer:

32√3

Step-by-step explanation:

I hope this helps... if not i dont know then

7 0
3 years ago
ANSWER FAST PLZ 25POINTS!!!!!!!!!!!
Ann [662]

Answer:

D, 75.36 inches.

Step-by-step explanation:

The circumference of a circle is 2*pi*r, where pi=3.14

Using this, 2*3.14*12=75.36 inches.

3 0
3 years ago
Read 2 more answers
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