Answer:
9. 6k + 5 and 2k - 1.
10. 5√2 .
Step-by-step explanation:
9. Area = 12k^2 + 4k - 5
Factoring:
12k^2 - 6k + 10k - 5
= 6k(2k - 1) + 5(2k - 1)
= (6k + 5)(2k - 1)
So the required lengths are 6k + 5 and 2k - 1.
10. The ratio of a leg to the hypotenuse is 1: √2 so if the hypotenus = 10 the length of a leg is 10 / √2
= 10 √2 / 2
= 5√2 .
Answer:
4.50
Step-by-step explanation:
First add 50 and 40 to get 90. Then multiply that by 0.05 to get 4.5.
I’m not very good when it comes to area but I did find the volume
Volume: 240
Explanation
Length * width * height
12 x 5 x 4 = 240