Area = 10.08 yd²
Solution:
The given shape is a trapezoid.
Length of top base (
) = 5.4 yd
Length of bottom base (
) = 1.8 yd
Height of trapezoid (h) = 2.8 yd
<u>To find the area of the trapezoid:</u>
Area of the trapezoid = 
= 10.08 yd²
Area = 10.08 yd²
Answer: d=5
Step-by-step explanation:
Arithmetic progression
An=a1+d(n-1)
An= nth term
A1= first term
D= common difference
N= nth position
We are given the 4th and 7th terms
For 4th term,n=4
A4=a1+d(4-1)
A4= 16
16= a1+d(4-1)
16= a1+3d........equation 1
For the 7th term,n=7
A7=a1+d(7-1)
A7= 31
31=a1+6d......equation 2
Bring them together
16=a1+3d
31=a1+6d
Subtract equation 1 from 2
So we have
15=3d
D=15/3
D=5
Therefore, the common difference is 5
Answer:
In a class of 40 students, 20% are females. How many males are in the class?
ANSWER
= 32
Please find attached photograph. The answers are 9a^2 and 15ab.
