Answer:
8x + 12 + 2x + 28 = 180
Step-by-step explanation:
just add the angles ABC and CBD then equates to 180
8x + 12 + 2x + 28 = 180
10x = 180 - 12 - 28
x = 140/10
x = 14
therefore, the equation to solve x :
8x + 12 + 2x + 28 = 180
Answer:
2
Step-by-step explanation:
The shape expanded in size by a factor of 2. So the dilation scale factor is 2
Answer: 12
Step-by-step explanation:
6-2 + 4 x 2 = 6 - 2. + 8
4 + 8 = 12
On the first spin, the probability that any specific number from 1 to nine inclusive is 1/9. On the second spin, the same value of probability applies. If the spinner is fair, the result from the first spin has no effect on the result of the second spin. therefore:
ABC is an isosceles triangle so AB = AC
Plug in
8x - 4 = 5x + 11
3x = 15
x = 5
BC = 4x - 2 = 4(5) - 2 = 20 - 2 = 18
Answer
BC = 18 units