2. find the interest rate (to the nearest hundredth) on a $5800 certificate of deposit if the interest paid in 9 months is $150.37.

The interest rate is 16.8%.

Step-by-step explanation:

Given : On a $5800 Certificate of Deposit if the interest paid in 9 months is $150.37.

To find : The interest rate?

Solution :

The formula to find the interest rate is

Where, A is the amount A=P+I

I is the interest I=$150.37

P is the principal P=$5800

t is time t=9 months

In year,

r is the interest rate

Substitute in the formula,

Taking log both side,

Taking exponential both side,

Multiply it by 12,

Therefore, The interest rate is 16.8%.

where's the diagrams?

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.