its good to know if a number is positive or negative because something as simple as forgetting the signs such as - + could drastically change your answer
Step-by-step explanation:
.............. just for filling 20 characters
Answer:
%
Step-by-step explanation:
Experimental probability is the actual odds produced from an event. Probability is typically expressed as a fraction of the number of desired outcomes (numerator) over the total number of outcomes (denominator). In this case, the desired outcome is getting heads on a coin flip (23) and the total outcomes is the number of times you flipped the coin (50). Represented as a fraction:

Divide numerator by denominator to get a decimal: 23÷50 = 0.46
Multiply the decimal by 100 to get a percent: 0.46 x 100 = 46%
Answer:C-The Cell is surrounded by a cell membrane-bound organelles.
Step-by-step explanation: Prokaryotes have a cell wall and a Eukaryote cells don’t have a cell wall.
Answer:
d = 7.51 cm
θ = 60°
Step-by-step explanation:
The baffle used in the notch of a whistle is a triangular baffle (Isosceles triangle OAB).
For the isosceles triangle, the sides with equal dimension are OA and OB which is represented with d
d = the vertical component of the side of a triangle
It is given by
6.5cm = d sin60
d = 6.5/sin60
d = 7.505553499465134
d = 7.51 cm -------- Approximated
To calculate angle θ
Angle on a straight line is = 180
So, 60 + 60 + θ = 180
θ= 180 - 120
θ = 60°
(See attachments below)