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LuckyWell [14K]
4 years ago
9

Keaton wrote the following paragraph proof for the Vertical Angles Theorem: The sum of angle 1 and angle 4 and the sum of angle

3 and angle 4 are each equal to 180 degrees _______________. The sum of angle 1 and angle 4 is equal to the sum of angle 3 and angle 4 by the transitive property of equality. Angle 1 is equal to angle 3 by the subtraction property of equality. Which phrase completes the proof?
Mathematics
2 answers:
nignag [31]4 years ago
8 0

Answer: by the def of supplementary angles

Step-by-step explanation: the definition for supplementary angles are "two angles that add up to 180 degrees".

Since that is true (and non of the other answers make sense) it has to be SUPPLEMENTARY ANGLES.

Stella [2.4K]4 years ago
5 0
<span>For the Vertical Angle theorem, if a slant line is intersected by a horizontal, the opposite angles must be equal. In here, he stated that the sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees. It means that the sum of angle 1 and angle 4 is equal to the sum of angle 3 and angle 4 by the transitive property of equality. </span>
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2. What is the value of x?
Goshia [24]

Answer:

x = 5

Step-by-step explanation:

The total degrees in a 4 sided polygon is 360°

360° = 51° + 51° + 2(28x - 11°)

56x - 22° + 51° + 51° = 360°

56x = 280°

x = 5

4 0
3 years ago
Inequality word problem<br><br> 7 less than -2 times a number X is greater than or equal to 41
Lady bird [3.3K]
Less than means minus so 7 less than means -7

-2 times a number x means -2 times x or -2x

is greater than or equal to means <u>></u>

41=41


so
-7+-2x<u>></u>41
-2x-7<u>></u>41
add 7 to both sides
-2x<u>></u>48
divide both sides by -2
remember to flip sign since divided by negative
x<u><</u>-96 
5 0
3 years ago
Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.
natulia [17]
Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.

(x + 1)

(2x + 1)

(x + 2)

(5x + 1)

<span>(5x – 2)

Solution :

By multiplying (5x - 2) and (x + 2), the given trinomial will be obtain as follow. 
 </span>(5x - 2) * (x + 2) = (5x * x) + (5x * 2) - (2 * x) - (2 * 2)
=  <span>5x^2 + 10x - 2x - 4
= </span>5x^2 + 8x - 4
4 0
4 years ago
Read 2 more answers
What is (13*-5)-8*-9)
expeople1 [14]

Answer:

7

Step-by-step explanation:

Simplify the following:

13 (-5) - 8 (-9)

13 (-5) = -65:

-65 - 8 (-9)

-8 (-9) = 72:

-65 + 72

-65 + 72 = 7:

Answer:  7

5 0
3 years ago
Read 2 more answers
PLEASE HELP QUICK!!!!! WILL GIVE BRAINIEST!!!!!
lisabon 2012 [21]

Answer:

-2

Step-by-step explanation:

its -2 cuz to find the slope the equation is the second y - the first y over the second x - the first x so -5 - 5 is 10 over 3 - -2 is 5 so it would be -10/5 which simplifies to -2

8 0
3 years ago
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