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
vaieri [72.5K]
3 years ago
10

Plz help me plz help me​

Mathematics
1 answer:
ivanzaharov [21]3 years ago
6 0

Answer:

15 hours because she is working extra shifts

You might be interested in
The number of accidents on a certain section of I-40 averages 4 accidents per weekday independent across weekdays. Assuming the
AysviL [449]

Answer:

1.83% probability there are no car accidents on that stretch on Monday

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

The number of accidents on a certain section of I-40 averages 4 accidents per weekday independent across weekdays.

This means that \mu = 4

What is the probability there are no car accidents on that stretch on Monday?

This is P(X = 0).

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-4}*(4)^{0}}{(0)!} = 0.0183

1.83% probability there are no car accidents on that stretch on Monday

5 0
3 years ago
Solve using the square root property.X^2=-12
Alla [95]

Answer:

x = ± 2i\sqrt{3}

Step-by-step explanation:

note that \sqrt{-1} = i

x² = - 12 ( take square root of both sides )

x = ± \sqrt{-12} = ± \sqrt{4(3)(-1)} = ± 2i\sqrt{3}

5 0
2 years ago
What is the slope of the line that passes through the points (-9, 8) and (−21,10)
rosijanka [135]

Answer:

-1/6

Step-by-step explanation:

(10 - 8)/(-21 + 9)= 12/-12= -1

y - 8 = -1(x + 9)

y - 8 = -x - 9

y = -x - 1

3 0
2 years ago
Read 2 more answers
Identify the axis of symmetry and vertex of f(x) = –2x2 –2x–1.
Leya [2.2K]

<span>Given the quadratic equation: f(x) = -2x^2 - 2x - 1, the axis of symmetry can be obtained by finding the line that divides the function into two congruent or identical halves. Thus, it should pass through the vertex and is equal to the x-coordinate of the vertex. </span>

<span>Note that a quadratic equation in standard form: y = ax^2 + bx + c, has the vertex located at (h,k) where, h = -b/2a and k is determined by evaluating y at h. In this case, a = -2, b = -2, thus, h = -0.5, k = 0.5. Thus, the vertex is located at (-0.5, 0.5) and the axis of symmetry is at x = -0.5. </span>

4 0
3 years ago
Read 2 more answers
rita has 4 plants.She gets 9 more plants then rita gets 1 more plants. How many plants does she have know
Dmitrij [34]

The answer is 14 plants.


Explanation:


She already has 4 plants. She adds 9 more plants to the 4 plants. She will have 13 plants. And then she adds 1 plant to the 13 plants. She has now 14 plants.


Hope it helps!

5 0
3 years ago
Other questions:
  • Anyone know the answer to question b
    11·1 answer
  • The line plot shows the weight gain, in pounds, of several dogs seen on Monday by a veterinarian at the animal clinic. A number
    14·2 answers
  • HELP PLEASE!
    12·1 answer
  • The line graph below shows how Fergus has done on the first five vocabulary quizzes of the semester. What was Fergus's second-hi
    11·1 answer
  • Translate this word problem as a system of equations and then solve using substitution.
    7·1 answer
  • Which decimal is greater 0.36 or 0.49
    15·2 answers
  • Solve each inequality then graph the solution
    6·1 answer
  • Lauren is working two summer jobs Lifeguarding and washing cars .She can work no more then 9 hours Altogether between both jobs
    10·1 answer
  • 3 (n+1) - 5 = 3n - 1<br><br> I need help with this question
    13·2 answers
  • For problem 8, find the area of the shaded region. The polygon is a regular polygon. please show work.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!