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
Semenov [28]
3 years ago
7

Evaluate the determinant for the following matrix: Please help !!!

Mathematics
1 answer:
Step2247 [10]3 years ago
5 0
The answer would be A
You might be interested in
PLEASE HELP!!!!!!!!!!!!!! THIS IS TIMED!!!!!!!!!!! HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Fittoniya [83]

Answer: 70% or .7

Step-by-step explanation: there are 10 people total who have a brother and 7 of those people have a sister so 7/10=.7

8 0
3 years ago
1572 divide 0.3 you must show all workings
Reptile [31]

Answer:

5240

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
32​% of U.S. adults say they are more likely to make purchases during a sales tax holiday. You randomly select 10 adults. Find t
Lorico [155]

Answer:

A.  21.06%

B. 66.88%

C. 81.56%

Step-by-step explanation:

There are two possible answer for the question asked, yes(more likely to make purchases) or no. The probability for a random adults answer yes to the question is 32% so the probability that the adults answer no is 68%.

(a) exactly​ two

There is only one case for this question, 2 people say yes and 8 people say no. The calculation for this problem will be:

2P10 * P(yes)^2 * P(no)^8= 10!/2!8!* 32%^2  * 68%^8 = 0.21066= 21.06%

(b) more than​ two

There are a lot of case for more than two, its easier to find out the negation of the probability which is "two or less". Case that fulfill "two or less" will be: 2 yes and 8 no

1 yes and 9 no

0 yes and 10 no

The calculation for the negation will be:

~P(X)= 0P10 * P(yes)^0 * P(no)^10   +   1P10 * P(yes)^1 * P(no)^9   +  2P10 * P(yes)^2 * P(no)^8  =

10!/0!10!* 32%^0  * 68%^10    +   10!/1!9!* 32%^1  * 68%^9   +   10!/2!8!* 32%^2  * 68%^8

0.02113 + 0.09947 + 0.21066  =  0.33126= 33.12%

Since its the negation, you need to subtract 1 with the negation

P(X)= 1 - ~P(X)

P(X)= 1 - 33.12%= 66.88%

(c) between two and​ five, inclusive

Same formula as above, but the case is:

2 yes and 8 no

3 yes and 7 no

4 yes and 6 no

5 yes and 5 no

The calculation will be:

2P10 * P(yes)^2 * P(no)^8 + 3P10 * P(yes)^3 * P(no)^7 + 4P10 * P(yes)^4 * P(no)^6 + 5P10 * P(yes)^5 * P(no)^5 =

10!/2!8!* 32%^2  * 68%^8    +   10!/3!7!* 32%^3  * 68%^7   +   10!/4!6!* 32%^4  * 68%^6  +  10!/5!5!* 32%^5  * 68%^5

0.21066 + 0.26435 + 0.21770 + 0.1229= 0.81561= 81.56%

8 0
3 years ago
Apply the distributive property to create an equivalent expression.
soldier1979 [14.2K]

Answer:

3 + 2k

Step-by-step explanation:

Given:

1/5(15 + 10k)

= (1/5 * 15) + (1/5 * 10k)

= (1 * 15)/5 + (1 * 10k)/5

= 15/5 + 10k/5

= 3 + 2k

Therefore,

1/5(15 + 10k) = 3 + 2k

The equivalent expression is 3 + 2k

4 0
3 years ago
Which expression is equivalent to 10 a+ 3b -2a+b
Inga [223]

Answer:

Step-by-step explanation:

Simplify like terms.

10a-2a+3b+b = 8a+4b

8 0
3 years ago
Read 2 more answers
Other questions:
  • A raindrop falls at 200m per minute. how long will it take a raindrop to travel 6000m?
    15·1 answer
  • What is the value of 2 StartRoot 6 + p EndRoot minus 3 p cubed when p = negative 2 -32 -16 32 56
    5·1 answer
  • Evaluate B^2 for a B = 9<br><br> • 18<br> •81<br> •92
    6·1 answer
  • Which of the following is true of any regular polygon? It is equilateral. It is equiangular. Its angles sum to 360 degrees.
    9·1 answer
  • Rewrite the expression with the given base. 25^3x with a base of 5
    6·2 answers
  • Select the correct answer.
    14·1 answer
  • If someone could please help me I’m confused thanks:)
    11·1 answer
  • A model car is built at a scale of 1 to 30. If the model car is 5 inches long, how many feet long is the actual car?
    10·2 answers
  • The area of a circle is 16π cm2. What is the circle's circumference?
    5·1 answer
  • The sum of three numbers is 88. The first number is 8 more than the second. The third number is 3 times the second. What are the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!