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nikdorinn [45]
3 years ago
11

Please help with these questions please

Mathematics
2 answers:
pentagon [3]3 years ago
8 0

Answer:

7. adjacent

8.127°

Step-by-step explanation:

adjacent angles on a straight line add up to 180°

180-53=127°

xeze [42]3 years ago
8 0

Answer:

they are supplementary

x = 127

Step-by-step explanation:

supplementary angles equal 180 degrees so you would do: 180 - 53 to find x

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Candice plotted the points (2, 15) and (0, -1) and then drew a line through these two points. What is the slope of the line she
FrozenT [24]
Use the slope equation: \frac{y2-y1}{x2-x1}

Plug in the points (2, 15) and (0, -1).
\frac{-1-15}{0-2} ⇒ \frac{-16}{-2} = 8

The slope of the line is 8.
7 0
3 years ago
5x + y =7<br> 20x + 2 = y
kodGreya [7K]

Answer:

y = 6

x = 0.2

Step-by-step explanation:

5x + y =7

20x + 2 = y

5x(4) + y(4) = 7(4)

20x + 4y = 28

(20x = 28 - 4y) = (20x = y - 2)

28 - 4y = y - 2

30 - 4y = y

30 = 5y

y = 6

5x + y =7

20x + 2 = y

y = 7 - 5x

7 - 5x = 20x + 2

5 - 5x = 20x

5 = 25x

x = 0.2

4 0
3 years ago
The triangles are similar. If DE = 24, EF = 42, and AB = 8, find BC
Alik [6]
If triangle abc is similar to def
That means all angles are the same and sides will be multiplied by some factor x. So AB(x)= DE
8x=24
Therefore x =3
Now BC=EF/x
BC=42/3
BC= 14
3 0
3 years ago
A new bridge structure requires triangles that are in a ratio of 1:1. If AC = 5x − 5 and EC = 3x + 9, find the distance between
Montano1993 [528]

Answer:

C. 60 ft

Step-by-step explanation:

If triangles ABC and EDC are in a 1:1 relation, they are congruent, and  

    AC = EC

5x - 5 = 3x + 9

    5x = 3x + 14

    2x = 14

      x = 7

AC = 5x + 5 = 5(7) - 5 = 35 - 5 = 30 ft

EC = 3x + 9 = 3(7) + 9 = 21 + 9 = 30 ft

Distance between top and bottom of bridge = AC + EC = 30 + 30 = 60 ft

5 0
3 years ago
Read 2 more answers
Six gallons of gasoline cost $15.06. What is the price of gasoline per gallon
Tamiku [17]
2.51 because 15.06/6 = 2.51
8 0
3 years ago
Read 2 more answers
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