Answer:
a = 5
b = 12
c = 13
Step-by-step explanation:
a^2+b^2=c^2
b-a=7(b=a+7)
c=a+8
Then, substitute
a^2+((a+7)*(a+7))=c^2
a^2+a^2+7a+7a+49=c^2
2a^2+14a+49=c^2
Because c = a+8
2a^2+14a+49=(a+8)(a+8)
2a^2+14a+49=a^2+16a+64
a^2-2a=15
a^2-2a-15=0
(a-5)(a+3)=0
a = 5,-3
a = 5(a side cannot be negative)
Plug in a=5 to the other equations to get
a = 5, b = 12, c = 13
Hope it helps <3
Is about 4.6942...
2 + 3.5k = 18.43
-2 -2
3.5k = 16.43
/3.5
Answer:
b divide both sides by 6
Step-by-step explanation:
6a = 72 if you divided each side by 6 you will get
a = 12 which would bring you to the actual answer.
Answer:
1. 19.375 inches
2. 8.808 km
Step-by-step explanation:
1. Diego's height - his brother's height
59.5 - 40.125
19.375 inches
Therefore, Diego is 19.375 inches taller than his brother.
2. distance needed to run - distance covered
10 - 1.192
8.808 km
Therefore the runner has to run 8.808 kilometres left to run to finish the race.
