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r-ruslan [8.4K]
3 years ago
5

The area of a circle is 201 cm². What is the diameter

Mathematics
1 answer:
natima [27]3 years ago
8 0

Answer:

The diameter would be 16

Step-by-step explanation:

The area of a circle is a=r^{2}×π. Now just plug in the values you have which is you area. 201=r^{2}×π now divide by pi on both sides you that you get about 64=r^{2}. Now find the square root on both sides which will then give you 8 as your radius. To find diameter from radius you have to multiply by 2. 8*2=16

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What’s the length of AG?
Ivenika [448]
Answer:

Explanation:
10^2 + 5^2 = c^2
100 + 25 = 125^2
sqrt of 125^2 = 11.2 (rounded-off)
4 0
3 years ago
4. A college's tuition increases by 15% each year. If tuition for your first year is $27,355, what will the tuition be each of t
nadezda [96]

Answer:

c

Step-by-step explanation:

increase in 15% therefore 1.15% of principal amount

$27355 times 1.15= $31458.25

$31458.25 times 1.15=$36,176.8975

$36,176.8975 times 1.15= $41603.53563

round all answers to the nearest dollar and you get

$31, 458, $36, 177, $41,604

so answer c

4 0
3 years ago
What is p (of four sevens in a row in a two dice toss)?
ivolga24 [154]

Answer:

P = 0.0008   (non rounded answer is 0.000771605)

Step-by-step explanation:

You first need to determine how many different ways you can roll a 7 using 2 dice.  You options are...

First Die    Second Die

  1                     6

  2                    5

  3                    4

  4                    3

  5                    2

  6                    1

There are six different ways to roll a 7.  If you do the same for all possible numbers, you will see that there are 36 total options when rolling two dice.  The first die has six options, and the second die also has 6 options.  6x6 = 36.  (This is the fundamental counting principal you have have leared in statistics)

So the chances of rolling a 7 one time with two dice is 1/6.  Since repeated rolling of dice is an independent event (any roll has no effect on the next roll), you multiply the probabilities of each event.

So the probability of rolling a 7 four times in a row is

(1/6)(1/6)(1/6)(1/6), which simplifies to 1/6^4, or 1/1296,

Probability is written in decimal form, and usually rounded to 4 decimal places.

1/1296 =   0.000771605,  or  0.0008 rounded to 4 decimals

4 0
3 years ago
I don't know how to solve this linear equation by substitution the equation is.
77julia77 [94]

Answer:

Point form - (3,22)

Equation form - x=3, y=22

Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the next equation.

I hope this helps you out! ☺

6 0
3 years ago
Fill in the blanks for 60 points. marking brainliest also​
erastovalidia [21]

Answer:

OK wait for a min OK plz ok

7 0
3 years ago
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