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
madreJ [45]
3 years ago
7

If A = {1, 2, 3, 4}, what is n(A)?

Mathematics
1 answer:
Elis [28]3 years ago
3 0

Answer:

Step-by-step explanation:

Count the number of elements in A

n(A) = 4

You might be interested in
ASAP. Pls help Pls help Pls help Pls help Pls help Pls help Pls help Pls help Pls help Pls help Pls help Pls help Pls help ASAP
nydimaria [60]

Answer:

333 ft^2

Step-by-step explanation:

Surface area is the sum of all the areas of the shape.

First, the area of the square in the center is simply 9x9 = 81.

The area of a triangle is (bh)/2, where b = base, and h = height

In the triangle, 9 is the base, and 14 is the height:

(9x14)/2 = 63

There are four triangles of the same area:

63 x 4 = 252

252 + 81 = 333

5 0
2 years ago
Read 2 more answers
Please help, I don’t get this
koban [17]

Answer:

3

5

12

30

50

the answers in order I believe I hope so

6 0
2 years ago
What is the absolute value equation for this graph
Svetlanka [38]

Answer:

y = -|x - 2| + 4

Step-by-step explanation:

The parent function of the absolute value function is y = |x|. There is a negative reflection in the x-axis, a horizontal translation of 2 units right, and a vertical translation of 4 units up.

4 0
2 years ago
A plumber has a set fee for a house call and charges by the hour for repairs. The total cost of
ratelena [41]

Answer:

slope is the hourly rate of $110/hr

y-intercept is the set fee of 85

6 0
2 years ago
Complete the proof.....
Zigmanuir [339]

Answer:

Step-by-step explanation:

From the given attachment to the question, the following can be deduced.

1. M is the midpoint of GH, given that M is the definition of midpoint.

2. GM ≅ MH, given that x = 2. So that,

GM = 5x = 5(2)

      = 10

MH = 3x + 4 = 3(2) + 4

      = 10

Thus, GM ≅ MH

3. GM = MH is the definition of congruence. This implies that they are similar.

4. 5x = 3x + 4, by substitution property of equality.

Since, x = 2 then;

5(2) = 3(2) + 4

10 - 10

5. 2x = 4, given that x = 2.

6. GH = GM + MH, by division property of equality.

3 0
3 years ago
Other questions:
  • What is 4-2y+(-8y)+6.2 simplified
    12·2 answers
  • If a and b are any two real numbers, explain how you calculate the difference a - b. Be sure to include the following in your ex
    10·1 answer
  • Your text suggests that you look for an agent who has been in the insurance business for how long?
    6·2 answers
  • 3x exponent 2=48 solve the equation please
    6·2 answers
  • Mark and Don are planning to sell each other their marble collections at a garage sale. If Don has 1 more than 3 times the numbe
    10·1 answer
  • Someone plz help me!!
    13·1 answer
  • A bag contains nine red balls, four green balls, and fifteen yellow balls. What is the probability of pulling out one red ball?
    13·1 answer
  • I need help solving this can you help me?
    12·2 answers
  • Factor this expression
    13·2 answers
  • Two diced are rolled. What is the probability that the sum of two numbers on the dice will be 4? 11/121/40
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!