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
pishuonlain [190]
3 years ago
11

I need help answering this please

Mathematics
2 answers:
Nikitich [7]3 years ago
4 0

Answer:

D

Step-by-step explanation:

2x + y = 4

If you substitute x = 1, and y = -4, then

2(1) - 4 = 2 - 4 = -2  not 4


WITCHER [35]3 years ago
3 0

Answer: Choice D) ordered pair is <u>not</u> a solution to the second equation

We can see this by replacing x and y with 1 and -4 respectively

2x + y = 4

2*1 + y = 4 .... replace x with 1

2*1 + (-4) = 4 ... replace y with -4

2 - 4 = 4

-2 = 4 .... this equation is false because -2 and 4 are different values

The last equation being false means that the original equation 2x+y = 4 is also false when (x,y) = (1,-4). Therefore, this ordered pair is not a solution to the second equation 2x+y = 4

A solution to the system must make BOTH equations true simultaneously, not just one.

You might be interested in
I will mark as brilliant please help
vodomira [7]
It’s C. x_< -2 Good luck
8 0
3 years ago
3. Planet Fitness Club charges $30 per month for a membership. 24-Hour Fitness Club charges $22 per month plus an $80 initial fe
umka2103 [35]

Answer:

The number of months after which amount paid to two fitness clubs be the same is 10

Step-by-step explanation:

Given as :

The charge of Mikes fitness center = $30 per month fro membership

The charge of All-Day fitness center= $22 per month fro membership + $80            

                                                              initiation charge

Let The number of months after which amount paid to each club be same = x

So, According to question :

30 x = 22 x + 80

Or, 30 x - 22 x = 80

Or, 8 x = 80

So     x =

∴       x = 10

Hence The number of months after which amount paid to two fitness clubs be the same is 10    Answer

7 0
3 years ago
Helllppppp meee please
sleet_krkn [62]

Answer:

Option B is the correct answer

Step-by-step explanation:

Hope it helps you in your learning process.

\tan 30\degree=\frac{17}{x}

\implies\frac{1}{\sqrt 3}=\frac{17}{x}

\implies\huge{\red{ x={17\sqrt 3}}}

\sin 30\degree=\frac{17}{y}

\implies\frac{1}{2}=\frac{17}{y}

\implies\huge{\purple{ y={34}}}

6 0
2 years ago
Read 2 more answers
Let f(x) = 2x3 – 4x.<br> Find f(-2).
N76 [4]

Answer:

Step-by-step explanation:

f(x) = 2x^3 - 4x.....find f(-2).....so sub in -2 for x

f(-2) = 2(-2^3) - 4(-2)

f(-2) = 2(-8) + 8

f(-2) = -16 + 8

f(-2) = -8 <==

7 0
3 years ago
Read 2 more answers
1. Select the TWO statements that describe
VMariaS [17]

the first one is a withdraw of 3.20$ and the second one is 5.1 feet above sea level

can i get brainlyest plz if its right

7 0
3 years ago
Other questions:
  • Helppppp pleaseeeee willlll appreciateddddd
    13·1 answer
  • What is Perimeter of triangle ABC?
    7·2 answers
  • A polling firm wants to use a one-sample z interval to estimate what proportion of voters in a country plan on
    6·1 answer
  • HELP ME PLS!!!!
    8·1 answer
  • I need help which triangle theorem do I use for these
    11·1 answer
  • Need help please ASAP
    5·1 answer
  • Evaluate the expression when a=3 .​<br><br> 27÷a =<br><br> Answer:
    11·2 answers
  • Graph the equation y = 22 – 3
    10·2 answers
  • Math problem<br> No links
    5·1 answer
  • The multiplication table below can be used to find equivalent ratios. A multiplication table. Which ratio is equivalent to the r
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!