Answer:
p1= 95, p2 = 180
Step-by-step explanation:
We have population : 50 given that population grows by 90% per year
So, After one year: new population (p1) will be
p1 = 50 + 50*0.9 = 50 + 45 = 95
Now, After two years: new population (p2) will be
p2 = 95 + 95*0.9 = 95 + 85.5 (approximately = 86) = 95 + 86 = 180
Therefore,
p1 = 95, and p2 = 180.
Answer:
The measure of JHK is 25 degrees
Step-by-step explanation:
If GHI is equilateral, it means each of the angles are equal to 60 degrees
Thus;
7x - 31 = 60
7x = 60 + 31
7x = 91
x = 91/7
x = 13 degrees
The measure of JHK IS x + 12
simply insert the value of x here
Angle JHK = 13 + 12
Angle JHK is 25 degrees
-3 + 8 is also the same as the expression mentioned above.
We can have the basic inequalities and equalities’ sign. (>, =, <).
These three set of symbols can discern, describe and explain the relationship between of numbers. These signs are used varying in many mathematical operations to explain and find discrepancy between value, sets of values or numbers in single and equitable category.
Examples includes
6 > 5; 6 is greater than 5; 5 is less than 6
1 > -1; -1 is less than 1; 1 is greater than -1
<span>-2 = -2; -2 is equal to -2 <span> </span></span>
Answer:
0.074
Step-by-step explanation:
convert 7.4% to a decimal.
The cross-section of a sphere is a circle . The area of a circle can be calculated by the formula A= 
Where r is the radius of the circle.
Given :
Solving for r we have:
Or r= 10.
The area of a sphere is calculated by the formula :
Substituting r value we have:
SA= 
The total surface area of this sphere is 400π .
