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Nady [450]
3 years ago
11

What happens to the area of a circle when the radius is tripled

Mathematics
2 answers:
gladu [14]3 years ago
8 0
  <span>A = pi*r^2 
ATriple = pi*(3r)^2 = 9*pi*r^2 = 9 A 

Triple the radius, increase the area by a factor of 9.</span><span>

i hope this has helped!</span>
iris [78.8K]3 years ago
7 0
The area is multiplied by 9 (I'm pretty sure)
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Which of the following statements is not true?
Amiraneli [1.4K]

The above question is asking us to check if the exponents are written in the correct way or not.Let us look at the options one by one.

1) The exponent denotes the number of time the letter or number is multiplied.We have six x which are multiplied so the exponent for x which is 6 is right .The exponent is written correct .

2)We have seven A which are multiplied and five B multiplied making the exponent of A as 7 and B as 5 .The exponents are written correct.

3)There are six b and six c .The exponent rule has been followed here that is we can keep bc inside parenthesis and make 6 as the exponent.

4)Here exponent for x,y,z all are 5. we can not remove the exponent of x and y .It is not following the exponent rule .

Option 4 is not true.

4 0
3 years ago
Read 2 more answers
A ball is thrown into the air with a velocity of 34 ft/s. It's height in feet after t seconds is given by y=34t-26(t)^2. Find th
kkurt [141]

Answer:

The average velocity of the ball at the given time interval is -122.3 ft/s

Step-by-step explanation:

Given;

velocity of the ball, v = 34 ft/s

height of the ball, y = 34t - 26t²

initial time, t₀ = 3 seconds

final time, t = 3 + 0.01 = 3.01 seconds

At t = 3 s

y(3) = 34(3) - 26(3)² = -132

The average velocity of the ball in ft/s is given as;

V_{avg} = \frac{y(3.01)-y(3)}{3.01 -3}\\\\V_{avg} = \frac{34(3.01)-26(3.01)^2-y(3)}{3.01 -3}\\\\V_{avg} = \frac{-133.223-y(3)}{0.01}\\\\V_{avg} = \frac{-133.223-(-132)}{0.01}\\\\V_{avg} =\frac{-1.223}{0.01}\\\\V_{avg} = -122.3 \ ft/s

Therefore, the average velocity of the ball at the given time interval is -122.3 ft/s

8 0
3 years ago
Solve the equation <br> 3= x/6 + 1
dangina [55]

Answer:

x = 12

Step-by-step explanation:

7 0
2 years ago
I have some of these answers trying to see if I got them right
dimaraw [331]
I think the question 23 is e. 
5 0
3 years ago
Rewrite the radical as a rational exponent. the fourth root of 7 to the fifth power
Verdich [7]
7^5/4 would be the answer to the question I think you are asking
7 0
3 years ago
Read 2 more answers
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