Step-by-step explanation:
Opposite angles in a cyclic quadrilateral are supplementary.
Therefore 3c = 4d = 180°, c = 60° and d = 45°.
Answer:

Step-by-step explanation:
Given


Required
Find XY
Represent BC and XY as a ratio;

Recall that:

Equate both ratios;

Convert to fractions

Cross Multiply


Divide through by 3


Hence:

Answer:
Step-by-step explanation:
2x - x ,
3- x , 12 = G (x+9, 7)
-3
x , 12. = G (x 9
-3 = 6
x,12 = G (x+6 , 7)
-6. -6
x , 6 = x, 7
F(6) G(7) - i believe
Answer:
D) -4 (with imaginary roots ±2i)
Step-by-step explanation:
Since you cannot take the square root of a negative number to produce a real result, the only option that has two imaginary roots is D) -4, where the two imaginary roots are 2i and -2i.
<span> y = 2/7 x - 1/7
slope = 2/7
</span><span>perpendicular lines, slope is opposite and reciprocal
</span>so slope of new line = -7/2
<span>passes through the point (9,-32)
</span><span>slope-intercept form: y = mx + b
so
b = y - mx
b = -32 - (-7/2)(9)
b = -32 + 63/2
b = -1/2
equation in </span>slope-intercept form:
y = -7/2 x - 1/2