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IrinaK [193]
3 years ago
11

SOMEONE HELP, I HAVENT BEEN PAYING ATTENTION TO CLASS

Mathematics
2 answers:
NNADVOKAT [17]3 years ago
6 0

Answer:

A=4cm

ok to do this we do the formula

A=PiR^2

A=3.14*4^2

A=3.14*16

A=50.24

and the area of circle B is 4 times the area of a so

50.24*4=200.96

200.96=3.14*X^2

Since  r  is on the right side of the equation, switch the sides so it is on the left side of the equation. 3.14 ⋅ r 2 = 200.96  Divide each term by  3.14  and simplify.

r 2 = 64

r=8

CIRLCE A=50.24

CIRLCE B=8

andrew11 [14]3 years ago
3 0
Uhhh yeah me neither!! 3.14 yes!!! it’s pie
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Please HELP ASAP !!!!
Andre45 [30]

Median = 75 because that is where the middle line of the box is.

First quartile = 70 because that is what the left edge of the box represents.

Third quartile = 85 because the right edge of the box indicates that.

Maximum = 100 because at the far right is the maximum data point of your data set.

The middle 50% of that data is between 70 and 85 because those are the values the box covers. It goes from the first quartile, 70, and stretches all the way to the third quartile 85.

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3 years ago
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erica [24]
Anything more ?! ...
4 0
2 years ago
5p−9=2p+12 solve for p
joja [24]
5p-9=2p+12
5p-2p=12+9
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7 0
3 years ago
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WILL GIVE BRAINLIEST
-BARSIC- [3]

Answer:

1

Step-by-step explanation:

i think

8 0
2 years ago
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What's the answer to this? and please explain.
vichka [17]
<h3>Answer: No, there isn't enough ribbon</h3>

===========================================================

Use this formula

a & b/c = (a*c+b)/c

to convert from a mixed number to an improper fraction

So,

a & b/c = (a*c+b)/c

3 & 3/4 = (3*4+3)/4

3 & 3/4 = 15/4

---------------------------------------------------

Next, we add the fractions 15/4 and 5/6. The denominators aren't the same, so we can't add right away. We need to get the denominators to the LCD.

In this case, the LCD is 4*6 = 24

  • The fraction 15/4 becomes 90/24 after multiplying top and bottom by 6.
  • The fraction 5/6 becomes 20/24 after multiplying top and bottom by 4

Now we can add the fractions:

90/24+20/24 = (90+20)/24 = 110/24

---------------------------------------------------

So far, we've added the 3&3/4 portion to the 5/6 portion to get the result 110/24

The last thing to do is to add on the two 1/3 ft pieces, which means we're adding on 2/3 of a foot

2/3 = 16/24 after multiplying top and bottom by 8

Add this to the result of the last section

110/24+16/24 = (110+16)/24 = 126/24

---------------------------------------------------

From here, we convert the improper fraction 126/24 to decimal form

Using a calculator, you should find that 126/24 = 5.25

The result is larger than 5, which means she used too much ribbon. There won't be enough ribbon to do everything she wants to do.

---------------------------------------------------

The shortcut we can take is to type the following into the calculator

3+3/4+5/6+2/3

doing so should lead to 5.25

5 0
3 years ago
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