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
liberstina [14]
3 years ago
13

describe a system of equations in which subtraction would be the most efficient way of solving the system.

Mathematics
1 answer:
Sati [7]3 years ago
7 0
Read https://www.wyzant.com/resources/answers/2997/how_do_you_figure_out_how_to_determine_the_best_method... and I think that will answer your question (:

You might be interested in
A casino knows that people play slot machines in hopes of hitting the jackpot but that most of them lose their dollar. Suppose t
liraira [26]

Answer:

A) Gamblers lose a relatively small amount most of the time but there are a few large pay-outs

B) if person play 5 times, the mean of the casino's profit is $0.04

if person play 5 times, the standard deviation of the casino's profit i$268.33

C) If gamblers play this machine 1000 times in a​ day, the mean is $80

If gamblers play this machine 1000 times in a​ day, the standard deviation is   $3794.3

D) Yes

Step-by-step explanation:

From the details given , it is observed that a casino knows that people play the soft machines in hopes of hitting the jackpot but most of them lose their dollars

There is a certain machine that pays out an average of $0.92 with standard deviation of $120

A) The standard deviation is so large because, Gamblers lose a relatively small amount most of the time but there are a few large pay-outs

B) if person play 5 times, the mean of the casino's profit is

E(x) = ( 1 - $0.92) x 5

     = $0.04

if person play 5 times, the standard deviation of the casino's profit is

S(3x) = √120² x 5

      = $268.33

C) If gamblers play this machine 1000 times in a​ day, the mean is

E(x) = ( 1 - $0.92) x 1000

     = $80

If gamblers play this machine 1000 times in a​ day, the standard deviation is

S(x) = √120² x 1000

      = $3794.3

D) The casino is likely to be profitable due to the average pays out winning jackpot in slot machines occur very less in $0.29, so more people play winning jackpot in slot machines in casino, the casino will become more profitable.

8 0
3 years ago
Find the equivalent expressions for (2+7)(x+1).
solong [7]
9x1

You would add 2+7 which =9 then x+1 that’s 1 so it would be 9x1
4 0
3 years ago
Select all that apply.
Marat540 [252]

Answer:

14

20

18

24

Step-by-step explanation:

36 = 6 x 6

16 = 4 x 4

25 = 5 x 5

All others are not square

6 0
3 years ago
Line AH, line GF, or line CF
gogolik [260]

Answer:

AB and EF are the ones parallel to HG

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
If f(x) = -(1/x^3) and x takes on successive values from -10 to 0.1 ,
prohojiy [21]
Alright, this one is a little interesting... Let's perform some tests to figure out what is happening:
f(-10) = -(1/(-10)^3) = -(1/-1000) = 1/1000  (positive)
f(-5) = -(1/(-5)^3) = -(1/-125) = 1/125 (positive, bigger than the last one)
f(-1) = -(1/(-1)^3) = -(1/-1) = 1 (positive, bigger than the last one)
f(-0.1) = -(1/(-0.1)^3) = -(1/-0.001) = 1/0.001 = 1000 (positive, bigger than the last one)
f(0) = -(1/0^3) = undefined!
f(0.1) = -(1/(0.1)^3) = -(1/0.001) = -1/0.001 = -1000 (negative)
f(1) = -(1/1^3) = -(1/1) = -1 (negative, but bigger than last one)

It's a little confusing with the undefined part at x = 0. What I can say is this, it is increasing from -10 up to 0, something weird happens at 0 and it resets, and starts increasing from 0 up to 0.1. 

I guess A would be the best answer?

3 0
3 years ago
Other questions:
  • If x=-3 is the only x intercept of the graph of a quadrant equation which statement best describes the discriminant of the equat
    16·2 answers
  • Which of the following fractions is the largest? <br> 10/13 or 11/14
    13·2 answers
  • Joe is a waiter. Last week he made $130 in tips working 15 hours, yesterday he made $45 working 5 hours. What is his hourly rate
    6·1 answer
  • Rich deposited money into a bank account that earned 2.5% simple interest each year. After 2 years, he had earned $14.65 in inte
    6·1 answer
  • Which value satisfies the inequality 5x + 7 ≤ 8x - 3 + 2x?
    14·1 answer
  • Solve 2x2 + 12x − 14 = 0 by completing the square.
    9·1 answer
  • Type the expression that results from the following series of steps: Start with y times by 4 then add 9.
    15·2 answers
  • 5. Rizza bought 24 face masks for Php172.80 and sold them for Php10.00 each. How much profit did she get? A. Php 62.50 B. Php67.
    11·1 answer
  • Construct a linear regression model that uses Units to predict Prod Cost. Round the model's coefficients to three decimal places
    5·1 answer
  • 6 children shared 26 sweets. Each got the same number. How many sweets were left over?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!