Answer:
(1-cos^2 x)(1+tan^2 x)=tan^2 x is an identity
Step-by-step explanation:
use pictomath
Answer:
the similarity statement helps you see that side RQ corresponds to UV, therefore 2x-4 : 5, and VW and QP are corresponding sides
Step-by-step explanation:
set up a proportion, then cross-multiply
2x-4/16 = 5/8
8(2x-4) = 16(5)
x = 7
You can see the distance, or the absolute value. For example, -2, and 2, have the same absolute value because they are the same distance from 0, and if you look at a number line, it shows that.
I hope this helps! :D
The area for a regular decagon is a bit complicated to type out, but a quick google search "decagon formula" should bring it up.
its like A= (5/2) a^2 sqrt(5+2*sqrt(5)) so yeah just google that and plug the values that they gave you in
i got 1107.97~
the perimeter is P = 10a where a is the side length. in this case it is 12. so the perimeter is 10*(12) which is 120cm.
Answer:
Step-by-step explanation:
A ladder 5 meters long leans against a wall. The top of the ladder is 4 meters above the ground. The
ladder makes an approximate angle of 53° with the ground. This will not be correct because in the process of calculating the angle , we have
tanФ = 10/6.2
= 1.6129
Ф = 1.6129
= 58.20
And it was not mentioned in the statement that the angle was approximated.
2. A ladder 5 meters long leans against a wall. The top of the ladder is 4 meters above the ground. The
ladder makes an approximate angle of 53° with the ground. This is correct , because the calculation will give an approximate answer of 53
3. A ladder 6 meters long leans against a building. The ladder makes an angle of 60' with the ground. The
ladder reaches approximately 5.2 meters up the wall. This is also correct because the calculation will give an approximate answer of 5.2