Answer:
21 cm²
Step-by-step explanation:
A = (b + B)×h/2
= (5 + 9)×3/2
= 14×3/2
= 7×3
= 21 cm²
Answer:
1, 3, 5, 6 I hope that's correct for you
Step-by-step explanation:
To multiply the fractions, like
![\frac{1}{4} \times \frac{1}{9}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%20%20%5Ctimes%20%20%5Cfrac%7B1%7D%7B9%7D%20)
Multiply the top,
then multiply the bottom.
![\frac{1}{4} \times \frac{1}{9} = \frac{1 \times 1}{4 \times 9} = \frac{1}{36}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%20%20%5Ctimes%20%20%5Cfrac%7B1%7D%7B9%7D%20%20%3D%20%20%5Cfrac%7B1%20%5Ctimes%201%7D%7B4%20%5Ctimes%209%7D%20%20%3D%20%20%5Cfrac%7B1%7D%7B36%7D%20)
Try to use a calculator if you aren't arithmetic heavy, but I suggest you to try to remember them because they are going to be helpful for courses like Algebra, Calculus, Statistics, etc.
To divide fractions, like
![\frac{ \frac{1}{5} }{ \frac{1}{8} }](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Cfrac%7B1%7D%7B5%7D%20%7D%7B%20%5Cfrac%7B1%7D%7B8%7D%20%7D%20)
You take the top number,
![\frac{1}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B5%7D%20)
Then you flip the bottom number,
![\frac{8}{1}](https://tex.z-dn.net/?f=%20%5Cfrac%7B8%7D%7B1%7D%20)
Then multiply the two
![\frac{1}{5} \times \frac{8}{1} = \frac{8}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B5%7D%20%20%5Ctimes%20%20%5Cfrac%7B8%7D%7B1%7D%20%20%3D%20%20%5Cfrac%7B8%7D%7B5%7D%20)
And that is your answer. Comment if you need more clarification
Answer:
hope it helps you
Step-by-step explanation:
https://mathsolver.microsoft.com/en/solve-problem/-4.2y%2B2.1%20%3E%20%20-2.52
4:1 is the answer............