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
Rasek [7]
2 years ago
8

Is ( – 1, – 5) a solution to this system of equations? 7x+2y=13 4x+4y=14

Mathematics
1 answer:
Rus_ich [418]2 years ago
5 0

Answer:

yes

Step-by-step explanation:

You might be interested in
Which of the following answers is the value of x in this equivalent fraction?
Ira Lisetskai [31]
I just had the question and the correct answer is 36.
7 0
3 years ago
Answer this and I’ll make you Brainly if it’s right
svlad2 [7]

Answer:

B

Step-by-step explanation:

f(x)=7x+6

If you replace 1 for x you get 7, then add 6 and you get 13.

Continue replacing x with the in numbers and you'll see they are all right

8 0
3 years ago
{ TOPIC -- TRIGONOMETRIC IDENTITIES }
UkoKoshka [18]
LHS ⇒ RHS:
Identities:
[1] cos(2A) = 2cos²(A) - 1 = 1 - 2sin²(A)
[2] sin(2A) = 2sin(A)cos(A)
[3] sin(A + B) = sin(A)cos(B) + cos(A)sin(B)
[4] cos(A + B) = cos(A)cos(B) - sin(A)sin(B)

cos(x) - cos(x + 2Θ)
= cos(x) - (cos(x)cos(2Θ) - sin(x)sin(2Θ))    [4]
= cos(x) - cos(x)(1 - 2sin²(Θ)) + sin(x)(2sin(Θ)cos(Θ))    [1] [2]
= cos(x) - cos(x) + 2sin²(Θ)cos(x) + 2sin(Θ)sin(x)cos(Θ)
= 2sin²(Θ)cos(x) + 2sin(Θ)sin(x)cos(Θ)
= 2sin(Θ)(sin(Θ)cos(x) + sin(x)cos(Θ))
= 2sin(Θ)sin(x + Θ)
8 0
3 years ago
The bearing of a staff room from the assembly ground is 195degrees, what is the bearing of the assembly ground from the staff ro
dlinn [17]

Answer:

15°

Step-by-step explanation:

the bearing of the assembly ground from the staffroom is

195-180=15°

6 0
3 years ago
Help please I'm really struggling ​
Dmitrij [34]

Answer:

a).

(fog)(x) = f(g(x)) \\  = (3x + 1) + 4 \\ = 3x + 5 \\

b).

(gof)(x) = g(f(x)) \\  = 3(x + 4) + 1 \\  = 3x + 12 + 1 \\  = 3x + 13

c).

(fog)( - 2) = 3( - 2) + 5 \\  =  - 6 + 5 \\  =  - 1

d).

(gof)( - 2) = 3( - 2) + 13 \\  =  - 6 + 13 \\  = 7

I hope I helped you^_^

8 0
3 years ago
Other questions:
  • Need help with fill in the exponent #9
    8·1 answer
  • Solve for this Variable. 5z - 2 = 2 (3z - 4)
    5·2 answers
  • Question
    14·1 answer
  • Will Mark brainliest, PLEASE Help!​
    13·1 answer
  • Order from least to greatest: -0.45 -25 |-50| 7.3 -1.3
    8·1 answer
  • Help pleaseee it’s a quiz<br> 35 points
    8·1 answer
  • What is a finite set
    9·1 answer
  • Pls show your work if possible ​
    15·1 answer
  • I need help with this ( please help me )
    14·1 answer
  • ........................................
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!