Answer:
<h2>The answer is 15cm</h2>
Step-by-step explanation:
Let b be the length of the second parallel side
Area of a trapezium is given by

where
h is the height
a and b are the parallel sides
From the question
Area = 230 cm²
height = 20cm
one of parallel side / a = 8 cm
Substitute the values into the above formula and solve for b
That's

Reduce the fraction with 2
That's

Expand the terms
That's


Divide both sides by 10
We have the final answer as
<h3>b = 15cm</h3>
Hope this helps you
-50 - (-221) = 171
This is because subtracting a negative number is like adding a positive version of that instead. For a more simple example:
5 - (-2) = 7 or 5 + 2 = 7
Answer:

Step-by-step explanation:
![\displaystyle -[-3]^2 - [4(-3) - 9(-2)] + 6[-2] \hookrightarrow -9 - [-12 + 18] - 12 \hookrightarrow -9 - 6 - 12 \\ \\ \boxed{-27}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20-%5B-3%5D%5E2%20-%20%5B4%28-3%29%20-%209%28-2%29%5D%20%2B%206%5B-2%5D%20%5Chookrightarrow%20-9%20-%20%5B-12%20%2B%2018%5D%20-%2012%20%5Chookrightarrow%20-9%20-%206%20-%2012%20%5C%5C%20%5C%5C%20%5Cboxed%7B-27%7D)
I am joyous to assist you at any time.
Answer:
75 miles per hour
Step-by-step explanation:
ok divide 600 by 8
Answer:
mica should have added 2 to 3 instead of 1
Step-by-step explanation: