a) By the alternate segment theorem,
b) Alternate angles are equal
Based on the quadrilaterals given, the types of angles that we see are Acute and Obtuse.
<h3>Which angles are shown in these quadrilaterals?</h3>
Acute angles are those that are less than 90° and these are shown in the trapezium quadrilateral.
Obtuse angles are higher than 90° and so are drawn outwards as seen in the parallelogram.
Find out more on acute angles at brainly.com/question/6979153.
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Simple...
you have: 18-7x= -20.5
Isolate the variable x
18-7x= -20.5
18-7x= -20.5
-18 -18
-7x=-38.5
Now simply divide-->>
x=5.5
Thus, your answer.
Answer:
(- 2, 5 )
Step-by-step explanation:
Given the 2 equations
y = - 4x - 3 → (1)
y = - 2x + 1 → (2)
Since both equations express y in terms of x, equate the right sides, that is
- 4x - 3 = - 2x + 1 ( add 2x to both sides )
- 2x - 3 = 1 ( add 3 to both sides )
- 2x = 4 ( divide both sides by - 2 )
x = - 2
Substitute x = - 2 into either of the 2 equations for corresponding value of y
Substituting x = - 2 in (2), then
y = - 2(- 2) + 1 = 4 + 1 = 5
Solution is (- 2, 5 )
Answer:
x=6
Step-by-step explanation:
Mean is another word for average. It is found by adding up all of the values, and dividing that number by the amount of values you added together.
You have 5 values that get a mean or, average, of 7.4
1) We can write this as the following:
(11+12+5+3+x)/5=7.4
2) To solve, multiply both sides by 5:
11+12+5+3+x=37
3) Now combine all of the numbers on the left:
31+x=37
4) Now subtract 31 from both sides:
x=6