Answer:
21.06
Step-by-step explanation:
1) Solve inside the parenthesis:
65.54-2.78×(2)^4
2) Apply the exponents:
65.54-2.78×16
3) Multiply 2.78 by 16:
65.54-44.48
4) Subtract:
21.06
Answer:
5 hours 12 seconds
Step-by-step explanation:
For the entire train to pass the person, the head of the lead wagon must travel (9·16 m) in 12 seconds. It is traveling at a speed of ...
(9·16 m)/(12 s) = (144/12) m/s = 12 m/s
For the train to travel 216 km + 144 m = 216,144 m will take ...
(216,144 m)/(12 m/s) = 18,012 s = 5 hours 12 seconds
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<em>Comment on the speed</em>
The speed of this "wagon train" is about 26.8 miles per hour, faster than any human and most animals can run for long periods. The Pony Express cross-country mail delivery service maybe set a reasonable standard for cross-country travel. Its average speed was about 10 miles per hour.
Answer:
x= 2
Step-by-step explanation:
so we have the height of this scalene triangle
formula for area of a scalene triangle is K=bh/2
K=area (4)
4=b4/2
solve for b
multiply by 2 on both sides
8=b4
divide by 4
2=b
check your answer 4=2(4)/2
4=8/2
4=4
statement is true
Two fifths because three fifths plus two fifths equals 1 whole
Answer:
HI
Step-by-step explanation:
HI HI HI HI HI HI HI HI HI HI HI HI