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
attashe74 [19]
3 years ago
14

The average of the first 3 numbers was 28. The average of the next 12 numbers was 38. What was the overall average of the number

s?
***NO SPAM, PLEASE!!!!!!***
Mathematics
1 answer:
Alexxx [7]3 years ago
4 0

Answer:

ther overall average would be 36

Step-by-step explanation:

You might be interested in
Software to detect fraud in consumer phone cards tracks the number of metropolitan areas where calls originate each day. It is f
DIA [1.3K]

Answer:

the probability that the user is fraudulent is 0.00299133

Step-by-step explanation:

Let be the events be:

G: The user generates calls from two or more areas.

NG: The user does NOT generate calls from two or more areas.

L: The user is legitimate.

F: The user is fraudulent.

The probabilities established in the statement are:

P (G | L) = 0.01//P (G | F) = 0.30//P (F) = 0.0001//P (L) = 0.9999//

With these values, the probability that a user is fraudulent, if it has originated calls from two or more areas is:

P (F|G) = \frac{P(F\bigcap G)}{P(G)} = \frac{P(F)P(G|F)}{P(G)} = \frac{P(F)P(G|F)}{P(F)P(G|F)+P(L)P(G|L)}

\frac{(0.0001)(0.30)}{(0.0001)(0.30)+(0.9999)(0.01)} = 0.00299133

4 0
3 years ago
How do I solve -0.4r=16?
Leviafan [203]

Answer:

r = -40

Step-by-step explanation:

1. Move constants to the other side of the equation

r = 16/-.04

2. Simplify (by calculator)

You can use a calculator and plug in 16/-.04

r = -40

2. Simplify (by fraction)

You can turn -.4 into a fraction.

-.04 = - 4/10

r = 16/-(4/10)

r = 16*10/-4

r = -40

6 0
3 years ago
Question in picture attached
mars1129 [50]

Answer:

Go to the search bar and type up photos. Press on the photo/screenshot you want and it should give you a button you can use to crop.

Step-by-step explanation:

4 0
3 years ago
Find dy/dx when<br> y=log(x)/log(x)−2
Alex17521 [72]

\\ \sf\longmapsto \dfrac{dy}{dx}

\\ \sf\longmapsto \dfrac{d}{dx}\dfrac{log(x)}{log(x)-2}

\\ \sf\longmapsto \dfrac{\dfrac{d}{dx}logx}{\dfrac{d}{dx}logx-2}

\\ \sf\longmapsto \dfrac{1/x}{1/x-0}

\\ \sf\longmapsto \dfrac{x}{x}

\\ \sf\longmapsto 1

3 0
3 years ago
A plane intersects a double-napped cone only at the cone's vertex.
REY [17]

In addition to ...

 degenerate ellipse

 point

it is also a degenerate circle (special case of ellipse).

___

The vertex of a double-napped cone is a point. So, the intersection of only the vertex with a plane is a point, not a degenerate parabola (a line) or degenerate hyperbola (pair of crossing lines).

Essentially, the plane must intersect at an angle greater than the angle of the edge of the cone with the axis of the cone. If the plane is not at the vertex, such an intersection angle will result in a circle or ellipse. As the plane gets closer to the vertex, the ellipse gets smaller, degenerating to a single point.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is 15.39-8.99 plzzzz help
    11·2 answers
  • Jasmine fills her bathtub, takes a bath, and then drains the tub. Which graph best depicts this situation by relating time to wa
    6·2 answers
  • A store offers a 15% discount on all iterms in the store during a sale. All store emloyees get an additional 10% employee discou
    11·1 answer
  • In the following triangle, find the values of the angles B and B, which are the best approximations to the solutions in this amb
    6·1 answer
  • What is the solution to 8•g=-32?
    9·2 answers
  • What is the equation of the least-squares regression line for the data set?
    9·1 answer
  • PLEASE!!!!! HELP ME!!!!!!
    13·1 answer
  • How would I solve this?
    13·2 answers
  • An online bookstore sells novels and magazines. Each novel sells for $5, and each magazine sells for $1. If Michelle purchased a
    10·1 answer
  • A TEACHER IS CONSTRUCTING A MATHEMATICS TEST
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!