All categories

3 years ago

Solve for y: 7y + 3y - 2y + 12 = 60

Mathematics

1 answer:

pav-90 [236]3 years ago

7 0

Answer:

Explanation:

7y + 3y - 2y + 12 = 60
8y + 12 = 60
8y = 60 - 12
8y = 48
y = 48/8 = 6

You might be interested in

In addition to specificity, which training principle is included in the SPORT training strategy? 1) Progress 2) Tenacity 3) Rete

Salsk061 [2.6K]

Answer: Progress

Step-by-step explanation:

In addition to specificity, the training principle that is included in the sport training strategy is progress.

Specificity has to do with individuals being specific in their training. One's training should tally with ones sport. For example, if one wants to have a 100 meters race, the person should not be training with those that wants to run a 3000 meters race.

Progress is about the gradual and consistent increment that one makes. Progress isn't about doing a starting a particular thing in a day and burning oneself out in order to finish it that day; but it's about the little increment that occurs let's say maybe gradual progression of about 5-10 percent. During training, a good sport man should be specific and make progress.

5 0

3 years ago

Help me with this one plesse

Veronika [31]

Answer:

Alternate Exterior

Step-by-step explanation:

6 0

3 years ago

Solve for x (Geometry)

Makovka662 [10]

Answer:6

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Please i need help!!!

Aloiza [94]

Answer:

a. 2,112

b. 64

Step-by-step explanation:

a. Using the explanation in B, let's find every term and add them.

Work:

96, 94, 92, 90, 88, 86, 84, 82, 80, 78, 76, 74, 72, 70, 68, 66, 64, 62, 60, 58, 56, 54, 52, 50, 48, 46, 44, 42, 40, 38, 36, 34, 32.

32 is the 34th term, the last row.

Add:

2,112 books is your answer.

b.The following is a sequence, meaning that there's a repeated change for every number.

This change is: -2

We're asked to find the 17th term.

Work:

96, 94, 92, 90, 88, 86, 84, 82, 80, 78, 76, 74, 72, 70, 68, 66, 64.

64 is the amount of books on the 17th row.

*64 is the 17th term.

4 0

3 years ago

Lie detectors Refer to Exercise 82. Let Y = the number of people who the lie detector says are telling the truth.

mr_godi [17]

Answer:

a) $P(Y\geq 10) = PX \leq 2) = 0.558$

b) $E(X) = \mu_X = np = 12*0.2 = 2.4$

$\sigma_X = \sqrt{np(1-p)}=\sqrt{12*0.2*(1-0.2)}=1.386$

$E(Y) = \mu_Y = np = 12*0.8 = 9.6$

$\sigma_Y = \sqrt{np(1-p)}=\sqrt{12*0.8*(1-0.8)}=1.386$

For this case the expected value of people lying is 2.4 and the complement is 9.6 and that makes sense since we have a total of 12 poeple.

And the deviation for both variables are the same.

Step-by-step explanation:

Assuming this previous info : "A federal report finds that lie detector tests given to truthful persons have probability about 0.2 of suggesting that the person is deceptive. A company asks 12 job applicants about thefts from previous employers, using a lie detector to assess their truthfulness. Suppose that all 12 answer truthfully. Let X = the number of people who the lie detector says are being deceptive"

For this case the distribution of X is binomial $X \sim N(n=12, p=0.2)And we define the new random variable Y="the number of people who the lie detector says are telling the truth" so as we can see y is the oppose of the random variable X, and the distribution for Y would be given by:[tex] Y \sim Bin (n=12,p=1-0.2=0.8)$

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$