Answer:
x = 20°
Step-by-step explanation:
Since BD = CD then Δ BCD is isosceles and its base angles are congruent, so
∠ CBD = ∠ BCD = 80° , then
∠ BDC = 180° - (80 + 80)° = 180° - 160° = 20°
∠ ADC = 180° - (80 + 60)° ← sum of angles in triangle
∠ ADC = 180° - 140° = 40° , then
∠ BDC + x = 40°
20° + x = 40° ( subtract 20° from both sides )
x = 20°
111 is a number that works. 0 is not the leading digit, and the number is divisible by 3.
111/3 = 37
Answer:
Nope. It isn't.
Step-by-step explanation:
6^2 + 8^2 = 100, and 100 = 10^2. So that means that the thing that you chose is incorrect.
Answer:
Step-by-step explanation:
4x -10y= 40
Let's rewrite this equation in the slope-intercept form (y= mx +c) so that we can obtain it's slope.
10y= 4x -40
Divide both side by 10:
The product of the gradients of perpendicular lines is -1.
⅖(gradient of line)= -1
Gradient of perpendicular line
Answer:
Step-by-step explanation:
volume of cylinder=πr^2h
=3.14*4=2^2*6
=4=3.14*4*6
=3.14*24
=75.36
=75.4 inches ^3
=
