Answer:
in steps
Step-by-step explanation:
12 - 6 x 2 + 3 = 3
(12 - 6 ÷ 2) x 3 = 27 .... ??
12 ÷ 6 + 2 x 3 = 8
12 ÷ 6 + 2 + 3 = 7
12 + 6 ÷ 2 + 3 = 18
Answer: A
Step-by-step explanation:
Considering the 45-45-90 triangle, we know the shared side has length
.
So, considering the 30-60-90 triangle, we know 
Answer:
About 11.62 by 11.62
A square had equal sides so you find the square root of 135 and that is rounded to 11.62.
So the perimeter would be about 46. But 46.48 exactly.
Refer to the diagram shown below.
The woman walks at a rate of 3.5 ft/s away from the streetlight. Therefore

The length of the shadow changes at the rate

Because triangles ACE and BCD are similar (AAA), therefore

12x = 5a + 5x
7x = 5a
Therefore

Answer: 2.5 ft/s
I think the answer is false