Answer:
Step-by-step explanation:

Answer:

Step-by-step explanation:
we know that
The formula to find the sum is equal to

where
a1 is the first term
an is the last term
n is the number of terms
In this problem we have



substitute the values in the formula

90 because a Triangle is 180° and that is a 90° angle so that means the orher angle add is 90
Answer:
C
Step-by-step explanation:
The area (A) of the triangle is calculated using
A =
ab sinC
where a, b are the 2 sides and C is the angle between them
here a = 9, b = 15 and C = 70°, hence
A = 0.5 × 9 × 15 × sin70° = 63.4 cm² → C
<span>Try simplifying the number to start. For example, if the population of the town is 100 people and the population growth is 2%, then there will 102 people in the town next year (Y=1). Continue adding 2% to the population for each of 10 years to get the answer for the 10th year. Growth would be considered 100% of current population plus 2% additional for a total of 102% - convert 102% to to a factor and you will have your formula Y=15,200*1.02;18,529</span>