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V125BC [204]
3 years ago
11

3/5 (2x - 1) - 3/4 (2x + 7)

Mathematics
1 answer:
Soloha48 [4]3 years ago
4 0

https://photomath.net/s/6O312e

^ that link will show you step by step and explain it, rather than writing a whole paragraph, Hope that helps:)

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Janice has just bought a new pack of levels in her favorite game, Candy Crush. She knows that she can win a new level on the fir
worty [1.4K]

Answer:

0.0039 = 0.39% probability that she beats all 4 levels on the first try.

Step-by-step explanation:

For each level, there are only two possible outcomes. Either she can win the new level on the first try, or she cannot. The probability of winning a level on the first try is independent of any other level. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

She knows that she can win a new level on the first try 25% of the time.

This means that p = 0.25

Janice plays through 4 levels.

This means that n = 4

What is the probability that she beats all 4 levels on the first try?

This is P(X = 4). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 4) = C_{4,4}.(0.25)^{4}.(0.75)^{0} = 0.0039

0.0039 = 0.39% probability that she beats all 4 levels on the first try.

5 0
3 years ago
H(x)= -x^2 - 4<br> i(x)=2x+3<br><br> h(i(5))
pshichka [43]
H(x) = -x² - 4
i(x) = 2x + 3

h(i(5)) = -(2(5) + 3) - 4
h(i(5)) = -(10 + 3) - 4
h(i(5)) = -(13) - 4
h(i(5)) = -13 - 4
h(i(5)) = -17
6 0
3 years ago
In 1960, the average cost of a gallon of milk was $0.49. In 1985, the average cost of a gallon of milk was $2.26. Which of the f
USPshnik [31]

Answer: its C

Step-by-step explanation:

HOPE THIS HELPS

3 0
3 years ago
Jamie has 1/10 yard of blue felt and 5/6 yard yard of green felt.
kondor19780726 [428]

Answer:

Jamie has 11/15 yards of Green Felt more than Blue Felt

Step-by-step explanation:

Green felt- Blue felt

= 5/6- 1/10

= 25/30- 3/30  ( taking LCM)

= 25 - 3/30

=22/30

=11/15 yards

LCM= 2*3*5= 30

Factors of 6= 2*3

Factors of 10= 2*5

7 0
3 years ago
HELP!
andre [41]

Answer:

D

Step-by-step explanation:

Distribute 10 in the equation

10 x 3 + 10 x 4 = 70

5 0
3 years ago
Read 2 more answers
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