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Oksi-84 [34.3K]
3 years ago
11

A coin is flipped 70 times and lands on tails 21 times. What is the relative frequency of the coin landing on tails?

Mathematics
2 answers:
DedPeter [7]3 years ago
8 0
It is 30%, because 21 out of 70 times is 30%.
vlada-n [284]3 years ago
8 0

It's 30%, what explanation is needed

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What is the total perimeter of this figure? Express your answer in feet.
bezimeni [28]

Answer:

i need to see the figure

Step-by-step explanation:

7 0
4 years ago
What is the equation for a circle with a center at (5,-2) and passes through (4,0)?
Kisachek [45]

Step-by-step explanation:

since you said equation I'm assuming it's in terms of x and y Just as a general equation

since the centre of the circle isn't at 0, you have to take that into account using the formula above. solve for the radius of the circle by substituting (4,0) into the formula and get your r value to replace in the original formula

8 0
3 years ago
50% shaded? Grid<br> 67%<br> 33%<br> 32%
mrs_skeptik [129]

Answer: I don't understand the question

Step-by-step explanation:

4 0
3 years ago
I need help with this problem, if anyone could help ASAP, that would be much appreciated. In the figure below, mROP = 125° Find
VARVARA [1.3K]

Answer:

mRP = 125°

mQS = 125°

mPQR = 235°

mRPQ = 305°

Step-by-step explanation:

Given that

  • mROP = 125°
  • ∠ROP is a central angle

Then:

  • measure of arc RP, mRP = mROP = 125°

Given that

  • ∠QOS and ∠ROP are vertical angles

Then:

  • mQOS = mROP = 125°
  • measure of arc QS, mQS = mROP = 125°

Given that

  • ∠QOR and ∠SOP are vertical angles

Then:

  • mQOR = mSOP

Given that

  • The addition of all central angles of a circle is 360°

Then:

mQOS + mROP + mQOR + mSOP = 360°

250° + 2mQOR = 360°

mQOR = (360°- 250°)/2

mQOR = mSOP = 55°

And (QOR and SOP are central angles):

  • measure of arc QR, mQR = mQOR = 55°
  • measure of arc SP, mSP = mSOP = 55°

Finally:

measure of arc PQR, mPQR = mQOR + mSOP + mQOS = 55° + 55° + 125° = 235°

measure of arc RPQ, mRPQ = mROP + mSOP + mQOS = 125° + 55° + 125° = 305°

6 0
3 years ago
What is the solution to this equation?<br> 4(4x + 1) = 3x - 46 - x) + 8
timama [110]

Answer:

-3

Step-by-step explanation:

start  by opening the brackets 4(4x+1)=(3x-46-x)+8

16x+4=3x-46-x+8 then put like terms together =

16x-3x+x=-46+8-4

14x=-42 divide all over by 14

=-3

3 0
3 years ago
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