Answer: A. contains mirrors that reflect the object
Step-by-step explanation:
A periscope contains mirrors in it that are on opposite sides and are arranged in a 45° angle to each other. It works by light striking the first mirror which cause its to reflect it at a 45° angle to the next mirror.
Depending on the length of the periscope, this continues until the last mirror reflects the incoming light to the eyes of the person using the periscope thereby allowing them to see objects hidden behind or under a barrier.
The formula for volume of a sphere is V=4/3πr^3.
If we substitute 18 in for "r", we can work the problem out from there.
V = 4/3(3.14)(18)^3
V = 24,416.64 cubic units, so your answer will be C.
Hope that helps!
Answer:
A = 40.0 (3 sig. fig)
C = 40
c = 15
Step-by-step explanation:
Using sin law,
sinA/15 = sin100/23
A = 40.0 (3 sig. fig)
Using angle sum of triange,
C = 180 - 40.0 - 100 = 40
Since angleA = angleC, by side equal opp angles, c = 15
Answer:
True
Step-by-step explanation:
Im not 100% sure it is true but i hope this helps ^^
Answer:
6.5:2.5 or 6.5/2.5 or 6.5 to 2.5
Step-by-step explanation:
A ratio is two numbers put together by a colon, slash (fraction), or "to"
This particular questions asks for math to English, so put in the Math ratio first then English.
