




Consider a
ABC right angled at C and
Then,
‣ Base [B] = BC
‣ Perpendicular [P] = AC
‣ Hypotenuse [H] = AB

Let,
Base = 7k and Perpendicular = 8k, where k is any positive integer
In
ABC, H² = B² + P² by Pythagoras theorem






Calculating Sin




Calculating Cos




<u>Solving the given expression</u><u> </u><u>:</u><u>-</u><u> </u>

Putting,
• Sin
= 
• Cos
= 

<u>Using</u><u> </u><u>(</u><u>a</u><u> </u><u>+</u><u> </u><u>b</u><u> </u><u>)</u><u> </u><u>(</u><u>a</u><u> </u><u>-</u><u> </u><u>b</u><u> </u><u>)</u><u> </u><u>=</u><u> </u><u>a²</u><u> </u><u>-</u><u> </u><u>b²</u>










✧ Basic Formulas of Trigonometry is given by :-


✧ Figure in attachment

Answer:
Cash Saver has the best price $13.44 per pound
Step-by-step explanation:
Lets work in oz.
PW sells 10 oz for 8.50 so 8.50/10 = 85 cents per ounce
CS sells 8 oz for 6.75 so 6.75/8 = .84 cents per ounce
Remember 16 oz in a pound
Answer:
x =
of y
Step-by-step explanation:
Given:
15% of x equals 20% of y
So,
0.15x = 0.20y
so
x = 0.20 y / 0.15
x = 1.3333y
x =
of y
Answer
Find out the how many games did the teams lose .
To prove
Formula

As given
Salem High School's winter sports teams WON 72% of their games last season.
If the teams played 50 games .
Percentage = 72%
Total value = 50
Put in the formula


Number of games win = 36
Number of games teams loses = Total number of games - number of games win
= 50 - 36
= 14
Therefore the number of games team loses are 14 .