Answer:
A. 2
Step-by-step explanation:
cos 60° = y / 4
cos 60° = 1/2
y = 2
Answer:
D. 3(x-1) = 3x-3
Step-by-step explanation:
I'm sure that's the answer
Answer:
156.6 m²
Step-by-step explanation:
To find the surface area of this pyramid, we need to find the area of the base and the sides.
The base triangle has a length of 9 and a height of 7.8. So:
Now, the length of the sides are 9 and the height is 9. So:
Since there are 3 identical sides:
Add the values:
Hope this helped!
Answer:
D
Step-by-step explanation:
Answer:
j = -5.1
Step-by-step explanation:
not sure if this is the answer u wanted, but hope this helps!