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
White raven [17]
2 years ago
10

Which is the inverse of this matrix? A. B. C. D. E. The matrix is noninvertible.

Mathematics
2 answers:
kvasek [131]2 years ago
8 0

Answer:

A.

-19 9 7

[15 -7 6 ]

-2  1  1

Step-by-step explanation:

katrin [286]2 years ago
4 0

Answer:

the one above is right :)

You might be interested in
Fred got a score of 68 on the test. Enter a division sentence using negative numbers where the quotient represents the number of
Contact [7]
100 / 68 equals negative 32.
4 0
3 years ago
Read 2 more answers
A certain casino game has a wheel with 5 different animals on it. It costs $10 to bet on an animal, and
Mrrafil [7]

Answer:

Expected value = - $ 4

Step-by-step explanation:

Number of animals on the wheel = 5

Number of animals the player can bet on = 1

The player will win if the ticker stops on the chosen animal. Since, only one animal can be chosen out of 5, the probability of winning will be = \frac{1}{5}

If the ticker stops on any of the rest 4 animals, the player will lose. So the probability of losing will be =  \frac{4}{5}

If the ticker stops on chosen animal, the winning amount is $ 20, if the ticker lands on any of other animal, its a loss of $ 10.

We need to calculate the expected value of this game. Expected value is calculated by multiplying the probability of each outcome with the outcome and then adding these products.

So, for this case, the expected value will be:

(Probability of winning x Outcome on winning) + (Probability of losing x Outcome of losing)

Using the values, we get:

E=\frac{1}{5}(20)+\frac{4}{5}(-10)=-4

Minus sign has been used with 10, because the money is being lost.

Thus, the expected value of the game is - $ 4. This means, on average a player who will play the game is expected to lose about $ 4 per game

5 0
3 years ago
If the 10th of the 10 consecutive numbers is 10, what is their sum?
liq [111]
Represent these consecutive numbers (assuming that they are all integers):

x
x+1
x+2
x+3
x+4
x+5
and so on
x+8
x+9 is the tenth number.  x+9 = 10, so x = 9.

Think of it this way:  there are 10 consecutive numbers, and the last one is 10.

Working backwards, we get the sequence 10, 9, ... 3, 2, 1.

The sum of such an arith sequence is equal to the count of the numbers times the average of the first and last terms:

sum here = 10(1+10)/2 = 5(11) = 55          (answer)
7 0
2 years ago
Vectors and scalars (are/arenot) the same
dangina [55]
There not the same
vectors have magnitude and direction scalars on the other hand only have magnitude
6 0
3 years ago
Read 2 more answers
Find the first four nonzero terms in a power series expansion about xequals0 for the solution to the given initial value problem
IgorC [24]

Answer:

The first four terms are;

w(x)= 4 + 2x² - ⁵/₆x⁴+ ¹¹/₃₆x⁶ +......

Step-by-step Explanation:

This is the interpretation of the question

w″ + 3xw′ -w=0

W(0)=4

W′(0)=0

CHECK THE ATTACHMENT FOR STEP BY STEP EXPLANATION

7 0
3 years ago
Other questions:
  • In your own words define angle
    10·2 answers
  • A band leader randomly selects 2 students out of 75 band members. if you and your brother are both band members, what is the pro
    7·2 answers
  • Pentagon uvwxy is similar to pentagon jklmn. what is the length of xy?
    12·1 answer
  • If you have 1,478 squares, can you make a stair-like structure using all of the squares?
    14·1 answer
  • What value of x makes this equation true? 4x – 10 = 18
    11·2 answers
  • What is this expression in simplified form? ( 6 square root 2) (-3 square root 5)
    11·1 answer
  • What is the value of the expression below when z = 5
    12·1 answer
  • The area of a triangle is 162 square meters. the height is 18 meters. what is the base
    11·2 answers
  • PLEASE ANSWER QUICKLYY IK ITS TEDIOUS CUZ THERES A LOT BUT MATH EXPERTS, HELP
    11·1 answer
  • 8.36 Polly the Penguin invested $250 in the Antarctic stock market. During the first year her investment suffered a 15% loss, bu
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!