Step-by-step explanation:
8.D
9.D
10.B
11. 120
12.C
13.D
14a.95
14b.180
15.5
Yes that is a true proportion
Answer:
Step-by-step explanation:
The equation of a line
y = mx + c
y - intercept point y
m - slope of the line
x - intercept point x.
c - intercept of the line
Step 1: find the slope
m = y2 - y1 / x2 - x1
Given two points
( -7 , -7) ( -7 , 4)
x1 = -7
y1 = -7
x2 = -7
y2 = 4
Insert the values into the equation
m = 4 - (-7) / -7 -(-7)
m = 4 + 7 / -7 + 7
m = 11/ 0
Step 2: sub any of the two points given into the equation
y= mx + c
y = 11/0x + c
(-7 ,4 )
x = -7
y = 4
4 = 11/0(-7) + c
4 = -77/0 +c
-77/0 is math error which means that the points are not correct
Answer:
Hey mate....
Step-by-step explanation:
This is your answer....
Yes, because a equilateral triangle has 3 equal angles. The 3 angles of a triangle equal 180°. So if the angles are all equal in an equilateral triangle, we do 60 times 3 which equals 180°.
hope it helps you,
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Answer:
That would be the second triangle.
Step-by-step explanation:
It's not the fourth triangle.
It is the second (45-45-90) triangle. It has 2 equal sides so
sin 45 = opposite / hypotenuse and cos 45 = adjacent / hypotenuse and the opposite = adjacent side, making the cosine and sine the same value.