Answer:
21
Step-by-step explanation:
all you have to do is get 70% of 30
70% of 30 is 21
Answer:
Initial height of the anchor is 75 meters.
Step-by-step explanation:
We are given the following in the question:

where, I is the anchor's elevation in meter after t seconds dropped from the ship.
We have to find the initial height of anchor that is we have to put t = 0 in the equation.
Putting t = 0, we get,

Thus, initial height of the anchor is 75 meters.
Answer:
Step-by-step explanation:
ooooh I loved these. ok. so if you have a set of lines like this, we will just use an "x" as an example for lines crossing. if you have 100 as the angle on the top, then the angle on the bottom will be exactly the same. the top and bottom are the same angle ALWAYS. the angles across from each other are the same. because brainly will timeout on me if I stop typing, I will post this and later I will post a picture of the first few finished as an example so you get what i'm talking.
Answer:
a= 45
Step-by-step explanation:
all angles equal 180 degrees so you take the angle given which is 45 and the other which is a right angle, or 90 degrees and subtract 45 from 90 and you get 45 so a = 45 and you add up 45 + 45 + 90 thats 180!