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3 years ago

Radius of a circle is increased by 50 %. find the % increase in circumference of the circle?

1 answer:

5 0

The circumference is merely increased by 50%. The formula for a circle (which I assume you know) is 2*pi*r. Work out this value, then multiply it by 1.5. You get the same answer as multiplying 2*pi*(r*1.5). Just fyi (if you didn't know), multiplying something by 1.5 increases it by 50%, multiplying something by 1.12 increases something by 12% etc.

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The equation x= -7y^2 describes a parabola. Which way does the parabola open?

Nutka1998 [239]

Answer:

Downwards

Step-by-step explanation:

8 0

2 years ago

Let f(x)= log x

marshall27 [118]

Answer:

The average rate of change of f(x) from 2-3 is 0.176

Step-by-step explanation:

Rate of change= change in y / change in x

= log 3 - log 2 / 3-2

= 0.477-0.301 / 1

= 0.176

5 0

3 years ago

The height of a cone-shaped container is 70 centimeters and its radius is 15 centimeters. Cathy fills the container completely w

user100 [1]

We know that
[volume of a cone]=pi*r²*h/3
h=70 cm
r=15 cm
[volume of a cone]=pi*15²*70/3----------> 16485 cm³

if Cathy uses 500 cm³ of honey----------------> 1 day
16485 cm³--------------------------------------> X
X=16485/500-----------> 32.97 days

the answer is 33 days

8 0

3 years ago

Using the Pythagorean Theorem on a Isosceles Right Triangle

Dmitry [639]

Answer:

6 square root 2

Step-by-step explanation:

its the only thing i can think of it to be

8 0

3 years ago

Read 2 more answers

A box contains balls numbered 3 through 15.

Phantasy [73]

Answer: 6/13

Step-by-step explanation:

A box contains balls numbered 3 through 15. This means that the sample space = {3 , 4 ,5 , 6 ,7, 8, 9, 10, 11, 12, 13, 14, 15,}

The total number of sample space = 13

Therefore : the probability of picking 3, 5, 9, 11, 12, 15 , will be the total number of times they appear in the sample space divided by the number of sample space.

number of times 3 appears = 1

number of times 5 appear = 1

number of times 9 appear = 1

number of times 11 appear = 1

number of times 12 appear = 1

number of times 15 appear = 1

All together , they appeared 6 times

Therefore : the probability of picking one of the numbers = 6/13

8 0

3 years ago