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
ss7ja [257]
3 years ago
11

Determine which of the following expressions can be factored to (x+ 2)(x +2)

Mathematics
2 answers:
inna [77]3 years ago
6 0

(x+2)(x+2)

x^2+2x+2x+4

x^2+4x+4

Answer : C ( x^2+4x+4)

docker41 [41]3 years ago
6 0

Answer:

C. x2+4x+4

Step-by-step explanation:

If you multiply it out:

(x)(x) + 2x + 2x + 2(2)

x2 + 4x + 4

You might be interested in
You select every tenth student on an alphabetical list of the students in your school. You survey the selected students in their
GalinKa [24]

Answer:

no it is not biased because it is randomly selected although in alphabetical order.

Step-by-step explanation:

7 0
3 years ago
Ann opened a new savings account with an initial deposit of $250. Which combination will result in a zero in balance in Ann's ac
Blababa [14]
C.  (10x3)10 - (27.5x2)10 = 0
8 0
3 years ago
There are 10 cards. Each card has one number between 1 and 10, so that every number from 1 to 10 appears once.
pychu [463]

Answer:

When a card is chosen at random with replacement five times, X is the number of times a prime number is chosen.          Here the card is chosen with replacement.  This implies probability for choosing a prime number remains the same as the previously drawn card is replaced.

The sample space= {1,2,3,4,5,6,7,8,9,10}

Prime numbers = {2,3,5,7}

Prob for drawing prime number = 4/10 = 0.4

is the same when replacement is done.

Also there are two outcomes either prime or non prime.  Hence in this case, X the no of times a prime number is chosen, is binomial with p =0.4 and q = 0.6 and n=5


When a card is chosen at random without replacement three times, X is the number of times an even number is chosen.

Prob for an even number = 0.5

But after one card drawn say odd number next card has prob for even number as 5/9 hence each draw is not independent of the other.  Hence not binomial.

When a card is chosen at random with replacement six times, X is the number of times a 3 is chosen.

Here since every time replacement is done, probability of drawing a 3 remains constant = 1/10 = 0.3

i.e. each draw is independent of the other and there are only two outcomes , 3 or non 3. Hence here X is binomial.

When a card is chosen at random with replacement multiple times, X is the number of times a card is chosen until a 5 is chosen

Here X is the number of times a card is chosen with replacement till 5 is chosen.  This is not binomial.  Here probability for drawing nth time correct 5 is  P(non 5 in the first n-1 draws)*P(5 in nth draw) = 0.1^(n-1) (0.9)

Because nCr is not appearing i.e. 5 cannot appear in any order but only in the last draw, this is not binomial.

Step-by-step explanation:


6 0
3 years ago
Geoff earns $9.25 per hour before taxes, and he works 40 hours per week. Geoff's employer withholds (takes out) 10.65% of geoff'
Snowcat [4.5K]

Answer:

a

Step-by-step explanation:

6 0
2 years ago
How would I set up this problem?
Sliva [168]
Since in 1990 there are 28%, we need to figure out when it gets to 31%. In addition, since it increases by 0.6% every year, we can say that 0.6x+28 (since 28 is the base value) is the percentage of babies born in wedlock every year. Therefore, to get 0.6x+28=31, we subtract 28 from both sides to get 0.6x=3
Dividing both sides by 0.6, we get x=5=the amount of years it takes to get 31% of babies born in wedlock. Since 1990 is the base value (we start from there!), we add 5 to that to get 1990+5=1995 as the yar
4 0
3 years ago
Other questions:
  • There are 270 sixth grade students and 45 chaperones going on a field trip. How many students would go with each chaperone if di
    10·2 answers
  • Feel relax and free to ask me any math related question.​
    12·1 answer
  • Please answer the question in the image below ASAP
    6·1 answer
  • Which of the following statements are true? check all that apply.
    11·1 answer
  • Help me on this one 4y - (y -4) =-20
    8·2 answers
  • Priya has a recipe for banana bread. She uses 24½ cup of flour to make 7 loaf of bread. Andre will follow the same recipe. He wi
    15·1 answer
  • This is worth 15 points please help. What is the equation in y=mx+b. Read the directions correctly, please.
    12·2 answers
  • Sketch a rectangular prism that has a volume of 500 cm3 and some sides that are not whole numbers.
    9·1 answer
  • PLEASE HURRY HELPE MARK BRAINLIST
    5·2 answers
  • Determine whether each of the following products is rational or irrational.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!