Answer:
D: It has exactly 3 congruent sides
Step-by-step explanation:
finished quiz on edg2020
Answer:
The total number of students at Milton Middle School is 240
I have some questions i need help with on my profile :)
Answer:
The adults shadow is 4.8 ft
Step-by-step explanation:
We can use ratio's to solve this problem
12 ft hoop 6ft adult
-------------- = -----------------
9.6 ft shadow x ft shadow
Using cross products
12 * x = 9.6 * 6
12x = 57.6
Divide each side by 12
12x/12 = 57.6 /12
x = 4.8 ft
Heres a tip, multiply the numbers without any decimals then when done, add how many decimal places there are in total.
Ex:16.28 x 4 = 65.12
1625 x 4 = 6512
Answer:
cos 2 x=1-sin^2 x
Step-by-step explanation:
x=-135°
cos 2x=cos (-270)=cos (-270+360)=cos 90=0
or cos 2x=1-2sin ²x=1-2(sin (-135))²
=1-2(-sin 135)²
=1-2(sin 135)²
=1-2(sin (180-45))²
=1-2(sin²45)
=1-2 (\frac{1}{\sqrt{2}})²
=1-1
=0