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3 years ago

It is possible to prove congruency of two triangles by comparing the size of corresponding angles only

1 answer:

7 0

Nope because congruent triangles mean directly equal to. two triangles can have the same angles but unequal lengths, hence congruency cannot be proven by using angles only

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Please help me,ASAP

pav-90 [236]

Answer:

b. They can both be 90 degree angles

c. Acute angles are by definition 90 degrees, and acute is less than but not equal to 90 degrees

d. should be always

e. should be never (explanation: they have to be adjacent to be supplementary, and vertical angles are never adjacent)

Step-by-step explanation:

8 0

4 years ago

Solve the system of equations by graphing. x+y=-9 4x+y=-19

shutvik [7]

For this case we have the following system of equations:

$x + y = -9\\4x + y = -19$

We multiply the first equation by -4:

$-4x-4y = 36$

We have the following equivalent system of equations:

$-4x-4y = 36\\4x + y = -19$

We add the equations:

$-4x + 4x-4y + y = 36-19\\-3y = 17\\y = - \frac {17} {3}$

We find the value of the variable "x":

$x = -9-yx = -9 - (- \frac {17} {3})\\x = -9 + \frac {17} {3}\\x = \frac {-27 + 17} {3}\\x = - \frac {10} {3}$

Thus, the solution of the system is:

$(x, y): (- \frac {10} {3}, - \frac {17} {3})$

See the graphic in the attached image

ANswer:

$(x, y): (- \frac {10} {3}, - \frac {17} {3})$

See the graphic in the attached image

4 0

4 years ago

Please help and I have to do this as soon as possible

grin007 [14]

The answer is E: 120 mph

5 0

2 years ago

Read 2 more answers

Nate walks 25 meters in 13.7 seconds. If he walks at this same rate, which of the following is closest to the distance he will w

ICE Princess25 [194]

Answer:

Step-by-step explanation:

4*60=240

240/13.7*25=437

6 0

4 years ago

Plsss help!! It’s due In 1 min plsss helppp !!!

Archy [21]

Answer:

55(?)

Step-by-step explanation:

I think it’s correct

4 0

3 years ago