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
NNADVOKAT [17]
3 years ago
15

Simplify. (1/2)^2−6(2−2/3)

Mathematics
1 answer:
Elena L [17]3 years ago
7 0

Answer:

Exact form : -31/4

Decimal form: -7.75

mixed number form: -7(3/4)

Step-by-step explanation:

You might be interested in
A box has five items, three good and two defective. three items are selected at random without replacement. let x be the number
user100 [1]
This problem can be solved from first principles, case by case.  However, it can be solved systematically using the hypergeometric distribution, based on the characteristics of the problem:
- known number of defective and non-defective items.
- no replacement
- known number of items selected.

Let
a=number of defective items selected
A=total number of defective items
b=number of non-defective items selected
B=total number of non-defective items
Then 
P(a,b)=C(A,a)C(B,b)/C(A+B,a+b)
where 
C(n,r)=combination of r items selected from n,
A+B=total number of items
a+b=number of items selected

Given:
A=2
B=3
a+b=3
PMF:
P(0,3)=C(2,0)C(3,3)/C(5,3)=1*1/10=1/10
P(1,2)=C(2,1)C(3,2)/C(5,3)=2*3/10=6/10
P(2,0)=C(2,2)C(3,1)/C(5,3)=1*3/10=3/10
Check: (1+6+3)/10=1 ok
note: there are only two defectives, so the possible values of x are {0,1,2}

Therefore the 
PMF:
{(0, 0.1),(1, 0.6),(2, 0.3)}

7 0
2 years ago
What is the difference of the rational expressions below?
Rom4ik [11]

Answer:

** +2x

Step-by-step explanation:

All the other ones can be it any thing will have difference but how can you do it?

* -sign mutipulcation

2x+* can be different.

O c, OA is N X+2 and more is not a equation. * - can be times really any number.

3 0
2 years ago
The football referee calls a penalty of 5 yards against a team in addition to a loss 3 yards. If another referee calls an additi
nignag [31]

Answer: 18 yards.

Step-by-step explanation: 5 + 3 + 10 = 18 Brainliest please?

8 0
3 years ago
At 7a.m. the temperature was 15f below zero.by 2p.m the temperature rose 32f and by 5p.m it dropped 10f what was the temperature
Elenna [48]
I think it's 3°F. Hope this helps
4 0
3 years ago
On April 11, 2012, two earthquakes were measured off the northwest coast of Sumatra. The first had a magnitude of 8.6. The secon
Eduardwww [97]

Answer: It's D-2.51 on edge

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • -6 divided by 2/3 Help me
    8·1 answer
  • If <br>4x+(y+x)=180<br>what is x? what is y?​
    10·1 answer
  • Write an equation in slope intercept form for a line that passed through the two points below (-4,7), (8,1)
    14·1 answer
  • Please help 6th grade math please please help
    9·1 answer
  • HELP ASAP! Middle of quiz!
    15·1 answer
  • I NEED THE CORRECT ANSWER TO THIS ASAP FOR A TEST!!!!! What is the solution to the inequality?
    6·2 answers
  • Help me on this question please
    15·2 answers
  • 5^2 + 12^2 =13^2 true or false?
    11·1 answer
  • Determine if the relation below is a function.
    6·1 answer
  • A new Outdoor Recreation Center is being built in Hadleyville. The perimeter of the rectangular playing field is 318 yards. The
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!