Answer:
Step-by-step explanation:
Let's look at the first two, and hopefully you'll be able to figure the rest out:
1. Answer below
The problem asks us to solve for , so that means we need to get on one side of the equation by itself. To do so, we will need to divide both sides of the equation by :
2. Answer below
The problem asks us to solve for , so that means we need to get on one side of the equation by itself. To do so, we will need to add to both sides of equation:
Answer:
B
Step-by-step explanation:
Calculate the distance d using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (- 4, - 5) and (x₂, y₂ ) = (1, - 2)
d =
=
=
= → B
Answer:
3x°
Step-by-step explanation:
50°+2x°+3x°=180°
50°+5x°=180°
collect the like terms
5x°=180°-50°
5x°=130°
x°=130°÷5°
x°=26°
2x°=2×26°=52°
3x=3×26°=78°
Answer:
D) Count the number of beats for one minute
Step-by-step explanation:
When measuring a person's pulse, we are measuring their heart beat. A person's pulse is measured using beats per minute (BPM).
Though not as accurate, most medical personnel simply counts the beats per 10 seconds, and then multiply by 6
For instance:
10 seconds = 13 beats
13 x 6 = 78 bpm
In conclusion, a person's pulse is based on how many beats per minute!
Hope this helps! :)