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2 years ago

7

What is the missing reason in the proof?

1 answer:

Sladkaya [172]2 years ago

3 0

Answer:

The correct option is;

SSS congruency theorem

Step-by-step explanation:

Given that opposite sides of a parallelogram are equal, whereby side AB is congruent to side CD and side BC is congruent to side DA and also that side AC is congruent to side CA, we have;

Triangle ABC with sides AB, BC, and AC is congruent to triangle CDA with corresponding sides CD, DA, and CA, by the Side-Side-Side (SSS) rule of congruency (two or more triangles that have all three sides of one triangle congruent to the three sides of the other triangle are congruent).

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10. 2x + 7y = 1<br> 2x - 4y = 12<br> Solve for y

adoni [48]

Answer:

The solution for y = -1.

Step-by-step explanation:

Given:

$2x\ +\ 7y\ =\ 1$ ....(1)

$2x\ -\ 4y\ =\ 12$ ....(2)

So, to solve for y, first we solve for x in equation (2):

$2x-4y=12$

⇒ $2x=12+4y$

Dividing both sides by 2,

⇒ $x=6+2y$

Now, substituting the value of x in equation (1):

$2x+7y=1$

⇒ $2(6+2y)+7y=1$

⇒ $12+4y+7y=1$

⇒ $12+11y=1$

⇒ $11y=1-12$

⇒ $11y=-11$

Dividing both sides by 11,

⇒ $y=-1$

Therefore, the solution for y = -1.

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2 years ago

The doghouse shown has a floor , but no windows. Find the total surface area of the dog house, including the door.

Anna [14]

I hope this helps you

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3 years ago

HELP URGENT!!!!

Vikki [24]

The equation should be y= -2x+5.

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3 years ago

$6x + $15 ≤ $70<br><br><br> I have no idea- xd

Delvig [45]

Answer:

x = 9

Step-by-step explanation:

6 × 9 = 54

54 + 15 = 69, which is less than 70.

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2 years ago

What is the best approximation for relative maximum of the polynomial function graphed below?

AlexFokin [52]

A. (0.6, -2.8)

Hope this helps! :)

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2 years ago