It would be a positive correlation because they had to do 1 or more years and they can't do negative years.
Ur solution is gonna be the point where ur lines intersect....and that is (1,-1)
so its just a matter of subbing that into ur answer choices to see which one is true.
so ur answer is : y = 2x - 3 and y = -2x + 1
Answer:
∠ XMN = 50°
Step-by-step explanation:
∠ XNM and ∠ XKL are alternate angles and are congruent, then
∠ XNM = 35°
The sum of the 3 angles in a triangle = 180° , so
∠ XMN = 180° - (95 + 35)° = 180° - 130° = 50°
Answer:
see explanation
Step-by-step explanation:
Using the exact values of the trigonometric ratios
sin60° =
, cos60° = 
sin45° = cos45° = 
Using the sine ratio on the right triangle on the left
sin60° =
=
= 
Cross- multiply
2a = 4
×
= 12 ( divide both sides by 2 )
a = 6
Using the cosine ratio on the same right triangle
cos60° =
=
= 
Cross- multiply
2c = 4
( divide both sides by 2 )
c = 2
------------------------------------------------------------------------------------------
Using the sine/cosine ratios on the right triangle on the right
sin45° =
=
= 
Cross- multiply
b = 6
cos45° =
=
= 
Cross- multiply
d = 6
( divide both sides by
)
d = 6
------------------------------------------------------------------------------------------------
a = 6, b = 6
, c = 2
, d = 6
Answer:
the last one
Step-by-step explanation: