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Sav [38]
3 years ago
7

when four coins are tossed simultaneously then what is the probability of getting two heads and two tails​

Mathematics
1 answer:
Paul [167]3 years ago
5 0

Answer:

50% chance

Step-by-step explanation:

4 * 50% = 2

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What is the greatest common factor of 60x4y?, 45xy, and 75xºy?
Scrat [10]

Answer:

15x^3y

Step-by-step explanation:

60, 45 & 75 are all divisible by 15

3 0
2 years ago
The number of calories burned at the gym is normally distributed with a mean of 425 and a standard deviation of 51. Find the Z-s
Galina-37 [17]

Answer:

(a) -3.708

(b) 1.706

(c) 0.490

Step-by-step explanation:

The z-score of normal distribution is given as:

z=\frac{x-\mu}{\sigma}

(a)

Given:

Score is, x=268

Mean value is, \mu =425

Standard deviation is, \sigma = 51

z-score is, z=\frac{268-425}{51}=\frac{-157}{51}=-3.078

(b)

Given:

Score is, x=512

Mean value is, \mu =425

Standard deviation is, \sigma = 51

z-score is, z=\frac{512-425}{51}=\frac{87}{51}=1.706

(c)

Given:

Score is, x=450

Mean value is, \mu =425

Standard deviation is, \sigma = 51

z-score is, z=\frac{450-425}{51}=\frac{25}{51}=0.490

6 0
3 years ago
Which equation is the inverse of 2(x - 2)2 = 8/7 + y)?
dolphi86 [110]
The answer should be the second one y=1/4x^2-x-6
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3 years ago
Describe how to write 3,482,000,000 in scientific notation.
tangare [24]

Answer:

3.482 x 10^9

Step-by-step explanation:

3, 4, 8 and 2 are the only numbers that aren't zero, so they're in the first part of the equation. 3 is the first number, so it goes before the decimal while the others are behind it. There are 9 total spots behind the 3, which is why it's 10 to the 9th power in this notation.

3 0
3 years ago
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Using your own words, explain why the APR does not compare loans for different lengths of time.
Leya [2.2K]
This may be your answer
Some classes of fees are  not included in the calculation of APR. Because these fees are not included,as  some consumer advocates claim that the APR does not represent the total cost of borrowing.
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5 0
3 years ago
Read 2 more answers
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