1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
son4ous [18]
2 years ago
15

Solve for x. Show your work. 3x = -12

Mathematics
2 answers:
Aloiza [94]2 years ago
8 0

Answer:

x = -4

Step-by-step explanation:

Divide each side by 3, so x can be isolated:

3x = -12

x = -4

So, the answer is x = -4

Anon25 [30]2 years ago
5 0

Answer:

x=−4

Step-by-step explanation:

You might be interested in
a statistics professor finds that when he schedules an office hour at the 10:30a, time slot, an average of three students arrive
Veseljchak [2.6K]

Answer:

The probability that in a randomly selected office hour in the 10:30 am time slot exactly two students will arrive is 0.2241.

Step-by-step explanation:

Let <em>X</em> = number of students arriving at the 10:30 AM time slot.

The average number of students arriving at the 10:30 AM time slot is, <em>λ</em> = 3.

A random variable representing the occurrence of events in a fixed interval of time is known as Poisson random variables. For example, the number of customers visiting the bank in an hour or the number of typographical error is a book every 10 pages.

The random variable <em>X</em> is also a Poisson random variable because it represents the fixed number of students arriving at the 10:30 AM time slot.

The random variable <em>X</em> follows a Poisson distribution with parameter <em>λ</em> = 3.

The probability mass function of <em>X</em> is given by:

P(X=x)=\frac{e^{-\lambda}\lambda^{x}}{x!};\ x=0,1,2,3...,\ \lambda>0

Compute the probability of <em>X</em> = 2 as follows:

P(X=2)=\frac{e^{-3}3^{2}}{2!}=\frac{0.0498\times 9}{2}=0.2241

Thus, the probability that in a randomly selected office hour in the 10:30 am time slot exactly two students will arrive is 0.2241.

6 0
3 years ago
Read 2 more answers
Help me plz fot 27 28 and 29 tysm
puteri [66]
27 is Jahmya and $0.54
28 is she should receive $9.38 back
29 is he should receive $1.53 back.
5 0
3 years ago
Here are 15,000 students at college x. of those students, 1,700 are taking both ethics and metaphysics this semester. there are
tekilochka [14]
I think the answer is 1,600 totals students taking metaphysics
7 0
3 years ago
Read 2 more answers
Karen grew a pumpkin that weighed 18.9 pounds for the competition at the
zheka24 [161]

Answer:

Nancy

Step-by-step explanation:

Her pumpkin weighed more

6 0
3 years ago
PLEASE HELP!!!
maw [93]

ppefef ew fewgwsdd gbresgwe

7 0
2 years ago
Other questions:
  • James has 24 shirts 18 pants and 16 shoes (pairs) how many combinations of shirt shoes and pants if he wears his favorite shirt(
    15·1 answer
  • Helppp!!!! please!!!
    12·2 answers
  • How do you find the derivative of f(x)=cos(x)f(x)=cos(x) ?
    8·1 answer
  • Name six pairs of supplementary angles
    12·1 answer
  • Which ratios are proportional to 14:21? choose all the answers that are correct
    11·1 answer
  • Find the sum <br> 3 3/15 + 4 2/5<br><br> A) 2 1/2<br> B) 22 4/5<br> C) 7 3/5<br> D) 5/38
    5·2 answers
  • Consider this dilation
    6·1 answer
  • How to change <br> a fraction into a percent
    11·2 answers
  • John earns $8 per hour for his after-school job. He never works more than 18 hours in a week, and he never works a fraction of a
    14·1 answer
  • The area of the rectanglre is 24 square centimeters what is the perimeter of the rectangle
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!