Answer:
106°
Step-by-step explanation:
ΔDCB is equilateral which means it must also be equiangular; each angle is 60°
ΔABD is isosceles because AB=BD so ∡ADB=∡BDA
∡ABD = 180-(67 + 67) = 46
∡ABC = ∡ABD + ∡DBC
∡ABC = 46 + 60
The discount was 35%
to find that i did 32.5 / 50 and found 0.65 which means thats 32.5 is 65% of 50, but 17.5 was taken off and 17.5 is 35% of 50.
Answer:
= 2(2x + 5)
Step-by-step explanation:
Given that:
= (7x + 5) - (3x - 5)
By simplifying
"-" sign before bracket will alter the inner signs
= 7x + 5 - 3x + 5
Adding like terms
= 4x + 10
By taking 2 common we get:
= 2(2x + 5)
i hope it will help you!
Answer:
Step-by-step explanation:a/
slope m = [f(x)-f(3)]/(x-3)
b/
tangent y - f(3) = [lim m ,as x-->3](x-3)
Y = x² + 7x - 4
y = -x - 4
x² + 7x - 4 = -x - 4
+ x + x
x² + 8x - 4 = -4
+ 4 + 4
x² + 8x = 0
x(x) + x(8) = 0
x(x + 8) = 0
x = 0 or x + 8 = 0
- 8 - 8
x = -8
y = -x - 4
y = -0 - 4
y = 0 - 4
y = -4
(x, y) = (0, -4)
or
y = -x - 4
y = -(-8) - 4
y = 8 - 4
y = 4
(x, y) = (-8, 4)
The solutions are (0, -4) and (8, -4).
