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sashaice [31]
2 years ago
9

Here a subtraction problem that has been solved incorrectly 21-9=11 what is the correct way​

Mathematics
1 answer:
Romashka [77]2 years ago
3 0
The correct wat is 21-9=12
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I need help bro!!!!!!!
konstantin123 [22]

Answer:

The one that is on the bottom half and on the right side.

Step-by-step explanation:

(0,30) to (10,0)

Because the x value 0 represents the time in which the paint job started and ends in the value 10

While the y value 30 is the amount of paint he started with and ends with 0

5 0
3 years ago
Sam have 10 books and Mary have 10 books too how manny books they all have
andreev551 [17]
Sam and Mary have 20 books.
8 0
3 years ago
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I need help with this 8
zubka84 [21]

The complete proof for the given parallelogram is given in the image attached below.

<h3>What is a Parallelogram?</h3>

A parallelogram is a quadrilateral whose opposite sides are parallel and also congruent to each other.

The complete proof would be as shown below:

1. ABCD is a parallelogram [given]

2. AB║CD [Definition of parallelogram]

3. ∠1 ≅ ∠2, ∠3 ≅ ∠4 [alternate interior angles theorem]

4. AB ≅ CD [Definition of parallelogram]

5.  ΔABE ≅ ΔCDE [ASA]

6. AE ≅ CE, BE ≅ DE [CPCTC]

7. AC and BD bisects each other at E [definition of segment bisector]

Learn more about parallelogram on:

brainly.com/question/3050890

#SPJ1

6 0
2 years ago
1.) There are 16 juniors and 8 seniors in the Chess Club. If the club
Lena [83]

Answer:

1.) There are 16 juniors and 8 seniors in the Chess Club. If the club  members decide to send 9 juniors to a tournament, how many different  possibilities are there?  

(16 over 9) = 16!/(9!*7!) = 11440

2.) How many different ways can 3 cards be drawn from a deck of 52  cards without replacement?  

52*51*50 = 132600

3.) How many different ways can 3 cards be drawn from a deck of 52  cards with replacement?  

52^3 = 140608

4.) A corporation has 5 officers to choose from which 3 are selected  to comprise the board of directors. How many combinations are there?

(5 over 3) = 5!/(3! * 2!) = 10

5.) A combination lock has the numbers 1 to 40 on each of three  consecutive tumblers. What is the probability of opening the lock in  ten tries?

10/40^3 = 1/6400

7 0
3 years ago
Tom is 13 years old. Brad is 10 yrs old. which number sentence can be used to find how much older Tom is than Brad ​
zysi [14]

Answer:

is there a multipe choice?

5 0
3 years ago
Read 2 more answers
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