The answer is d the last one
Answer:
If you solve for a2+b2=c2 you will see
Step-by-step explanation:
1 will be 11.61
2. Will be 7.6
so there will be a 4.01 difference
1. a2+3(2)=12(2)
a2+9=144
then subtract 9 from 144
you get 135
then 
135
Answer:
y=147/17
Step-by-step explanation:
-17(y-2)=-177+64
-17y+34=-113
-17y=-113-34
-17y=-147
17y=147
y=147/17
Answer: the eastbound train had travelled 12 miles
Explanation: using Pythagoras theorem, we know that
X^2 = a^2 + b^2
Where ^ stands for raised to power.
Let
a stand for the train going towards North and
b stands for the train going towards east.
X stands for the total distance between train a and b = 20 miles.
By Pythagoras rule
X^2 = a^2 + b^2
20^2 = 16^2 + b^2
400 = 256 + b^2 so that
b^2 = 400 - 256 = 144
b = √144
b = 12 miles.
Answer: this is gonna be kinda long here i wrote some on because it was to much
Step-by-step explanation:
5. 459 times 87 = 39933
6. 2,679 times 5 = 13395
987 times 23 = 22701
9. 64,897 divided by 47 = 1380
10. 687 times 9 = 6183
17. 987 divided by 97 = 10
