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givi [52]
3 years ago
13

Which system of linear equations appears to have a solution of (-1, 4)

Mathematics
2 answers:
katovenus [111]3 years ago
8 0

Answer:

its D the last one

Step-by-step explanation:

Got it right on Edge duh

PilotLPTM [1.2K]3 years ago
6 0

Answer:

a

Step-by-step explanation:

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Solve the system of equations by substitution.<br> y = 5x - 13<br> 4x + 3y = 18<br> The solution is
Rudik [331]

Answer:

x=3 and y=2

Step-by-step explanation:

1.) 4x+3(5x-13)=18

expand into 4x+15x-39=18

18+39= 57

15x+4x= 19x

57/19= 3 so x=3

substitute 3 into y= 5x - 13

and you get 2 so y=2

3 0
3 years ago
A conjecture and the flowchart proof used to prove the conjecture are shown.
pishuonlain [190]

Answer:

∠1 is supplementary to ∠3.

Step-by-step explanation:

Given information: ABCD is a parallelogram.

Prove: ∠1 is supplementary to ∠3.

Proof:

∠1 = ∠ADB

∠2 = ∠DBC

∠3 = exterior angle adjacent to angle D B C.

Statement                                         Reason

∠2 is supplementary to ∠3           Linear pairs

m∠2+m∠3=180°                             Definition of supplementary angles

m\angle 1=m\angle 2                            Alternative interior angles

m∠1+m∠3=180°                              Substitute property of equality

∠1 is supplementary to ∠3            Definition of supplementary angles

Hence proved.

3 0
4 years ago
If a circle has a circumference of 6.28 inches, then what is the radius?
Dominik [7]
Circumference = 2\pi r \\  \\ C = 2 (3.14)r \\  \\ 6.28 = 2 (3.14)r \\  \\ 6.28 = 6.28r \\  \\\boxed {\bf{ r =1}}

The radius is 1 inch.
8 0
3 years ago
The sum of 42 and 55, doubled
White raven [17]

Answer:

194

Step-by-step explanation:

42+55= 97

97×2=194

4 0
3 years ago
Read 2 more answers
Karen works for 85 hours throughout a two-week period. She earns $1,891.25 throughout this period.
tekilochka [14]

Step-by-step explanation:

1Hour=x

85x=1891.25

X=1891.25÷85= 22.25

Multiple that by 8 and you will get the answer which is 178

7 0
3 years ago
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