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timama [110]
3 years ago
15

If I flip a coin, what is the probability of getting both heads?

Mathematics
2 answers:
Andrew [12]3 years ago
4 0
50% chance of getting heads or 25%
Alexus [3.1K]3 years ago
3 0
The answer depends on how many times you flipped it.
If you flipped the coin once, the probability is zero. No coin has 2 heads.

If you flipped the coin twice, the probability is 1 out of 4. This is because there are four possible outcomes when you flip a coin twice (both heads, both tails, first time head second time tail, first time tail second time head). Hope this helps!
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If y varies directly as the x^2 and y = 200 when x = 5, what is the value of y when x = -3?
gayaneshka [121]
As the variation is direct we have:
 y = kx ^ 2

 We must find the value of k.
 For this, we use the following data:
 y = 200 when x = 5
 Substituting values we have:
 200 = k5 ^ 2

 Clearing k:
 k = 200/5 ^ 2

k = 200/25

k = 8
 Then, the function is:
 y = 8x ^ 2

 We evaluate the function for x = -3
 y = 8 (-3) ^ 2

y = 8 (9)

y = 72
 Answer:
 the value of y when x = -3 is:
 c.
 
72
6 0
3 years ago
HELP PLEASE PLEASE I WILL GIVE BRAINLIEST
podryga [215]

In the top the "f(x)" equals 9, now they are asking you to add onto the 9 by 1 causing it to be 10. If you did the first few you would have noticed that it takes 9 in order to get to 5 from -4.

here are the answers btw:

8 0
2 years ago
HELP ME WITH THIS QUESTION PLEASE
lara [203]

Answer:

  • 0.79

Step-by-step explanation:

all you really need to do is multiply your decimal (15.8) by your percent (5) so, you problem would look like 15.8(.05) (note it is .<em>0</em>5 because there need to be 2 decimal places) so, your answer is .79

6 0
3 years ago
Last summer, Brianna planted 2 plants
Volgvan

Answer: how many square feet are there? multiple each square foot by 2

Step-by-step explanation:

4 0
2 years ago
Which is zero of the polynomial expression 7x+21
swat32

Answer:

The zero is x = -3

  1. Use the Rational Zero Theorem to list all possible rational zeros of the function.
  2. Use synthetic division to evaluate a given possible zero by synthetically dividing the candidate into the polynomial.
  3. Repeat step two using the quotient found with synthetic division.

Please Mark Brainliest If This Helped!

4 0
2 years ago
Read 2 more answers
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