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:
Step-by-step explanation:
GIVEN: A bag contain red marbles, green marbles and blue marble. A marble is chosen at random from the bag and not replaced, then a second marble is chose.
TO FIND: What is the probability both marbles are green.
SOLUTION:
Total marbles in bag
total number of green marbles
Probability that first marble will be green
Probability that second marble will be green
As both events are disjoint
probability both marbles are green
Hence the probability both marbles are green is
Answer:
please see photo attached for detailed analysis.
Answer:
The correct answer is :
Amount: 2
Base: 100
Percent: 2%
Step-by-step explanation:
So, we get the answer by using whatever we know. The first step is that 2 is the percent because it is having the percent sign . In addition we know that 100 is the base. And the one which is left is 2 so it's the amount.
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Answer:
Step-by-step explanation:
The population of a community is known to increase at a rate proportional to the number of people present at time t.
This means that the population growth is modeled by the following differential equation:
Which has the following solution:
In which P(t) is the population after t years, P(0) is the initial population and r is the growth rate.
The population has doubled in 10 years
This means that . We use this to find r.
So the equation that will estimate the population of the community in t years is: