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3 years ago

10

Explain how opposites are applied when solving one-step equations. How do you know what to use to solve a one-step equation? Be

specific and complete.

1 answer:

weeeeeb [17]3 years ago

6 0

Input: 4y-16+8y=-4 answer: 12y-16=-4 HERE IS YOUR ANSWER

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Assume that there are an equal number of births in each month so that the probability is that a person chosen at random was born

NikAS [45]

Answer:

0.2773 = 27.73% probability that at the May celebration, exactly two members of the group have May birthdays

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they have a birthday in May, or they do not. The probability of a person having a birthday in May is independent of any other person. 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.

Probability of a person being in May:

May has 31 days in a year of 365. So

$p = \frac{31}{365} = 0.0849$

Group of 20 friends:

This means that $n = 20$

What is the probability that at the May celebration, exactly two members of the group have May birthdays?

This is P(X = 2).

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

$P(X = 2) = C_{20,2}.(0.0849)^{2}.(0.9151)^{18} = 0.2773$

0.2773 = 27.73% probability that at the May celebration, exactly two members of the group have May birthdays

3 0

3 years ago

Kate uses 9.8 pints of white paint and blue paint to paint her bedroom walls. 3 4 of this amount is white paint, and the rest is

Natali [406]

Answer:

Blues Paints = 2.45 pints

Step-by-step explanation:

Let's generate an expression that would relate all the variables given:

Total pints of paints used:

9.8 = white + blue

Pints of white paint used:

= 3/4 of 9.8

=0.75 * 9.8

=7.35

Number of pint of BLUE PAINTS used:

9.8 = White Paints + Blue Paints

9.8 = 7.35 + Blue Paints

Blue Paints = 9.8 - 7.35

Blues Paints = 2.45

Kate used 2.45 pints Blues Paints for her bedroom

4 0

4 years ago

Find the slope of the line

tiny-mole [99]

Answer:

-2/4

Step-by-step explanation:

rise 2 and run 4

this graph is negative

7 0

3 years ago

olganol [36]

Answer: I think that the answer is either 11 avocados or 9

Step-by-step explanation:

21-2.50 is 18.50

with this he can buy 9 with 15 dollars but he still has 3.50 left over

if he uses this left over change he can buy two more which would make 11.

If this is wrong I am sorry!

4 0

3 years ago

Read 2 more answers

what is the positive slope of the asymptote of (y+11)^2/100 - (x-6)^2/4 = 1? The positive slope of the asymptote is

ale4655 [162]

Answer:

5

Step-by-step explanation:

its 5 on Edge just took the test!

6 0

3 years ago