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
Ganezh [65]
3 years ago
8

Which of the following expressions does not mean the same as the other three?

Mathematics
2 answers:
Goshia [24]3 years ago
6 0
X-(-17) because two negatives equal a positive, so the actual equation is x+17 while the others are x-17
Rashid [163]3 years ago
3 0

its number 3 :) X-(-17)

You might be interested in
374 × 510<br><br> What are the partial products Lucas will need to solve the problem?
BabaBlast [244]
The partial products that Lucas would need to solve this problem would be 3,740 and 187,000 if you are multiplying 374 on the top column and 510 on the bottom column. Or, the partial products Lucas would need is 2,040 and 35,700 and 153,000. Both partial products combination added together would be 190,740.
6 0
3 years ago
In a lottery game, a player picks six numbers from 1 to 21. If the player matches all six numbers, they win 40,000 dollars. Othe
Darina [25.2K]

Answer:

The expected value of this game is -$0.26.

Step-by-step explanation:

Expected value:

Each possible earning/loss multiplied by it's probability.

Probability:

Number of desired outcomes divided by the number of total outcomes.

In this question, the order in which the numbers are chosen is not important. So we use the combinations formula to solve.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Probability of winning:

Desired outcomes:

The 6 correct numbers, so D = 6

Total outcomes:

6 numbers from a set of 21. So

T = C_{21,6} = \frac{21!}{6!15!} = 54264

Probability:

p = \frac{1}{54265}

Expected value

\frac{1}{54265} probability of earning 40,000.

\frac{54264}{54265} probability of losing 1. So

E = \frac{40,000}{54265} - \frac{54264}{54265} = -0.26

The expected value of this game is -$0.26.

7 0
3 years ago
Solve the simultaneous equation<br> 4x-y=9 <br> 2x-3y= -23
MrMuchimi

Answer:

x = 5

y = 11

Step-by-step explanation:

y = 4x - 9

2x -3(4x - 9) = -23

2x - 12x + 27 = -23

-10x = -23 -27

-10x = -50

minus cancels out

x = 5

y = 4(5) -9

y = 20 - 9

y = 11

4 0
3 years ago
Trapezoid problem pls help
lakkis [162]
Do Area = (base 1 + base2) × H
7 0
3 years ago
Can someone please help me ASAP
ElenaW [278]

Answer:

h\

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • 14/x-2 - 4= 10 [solve]
    12·2 answers
  • Which graph represents a direct variation relationship?
    14·1 answer
  • What does the notation
    5·1 answer
  • I need help i'm struggling with this work!
    6·1 answer
  • Help due in 10 minutes​
    6·1 answer
  • What expressions can be used to find 1/3 of 12
    10·2 answers
  • Which of the following are NOT the correct reasons to complete the proof above?
    8·1 answer
  • Suppose I have an urn full of balls.10 balls are balck, 2 are blue,2 are red,1 is green. I reach into the urn and pull out a bal
    15·1 answer
  • Help me i am in middle school
    14·1 answer
  • 2/3 divided by 1/4 ill give brainliest
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!