Given that h(t) = – 4.9t² + 25.6t + 69 represents the height, h(t), in meters, of an object that is thrown off the top of a building, t seconds after it is
thrown answer the following questions:
how many meters high will the object be 2.7 seconds after it is thrown? 102.399
round to 3 decimal places,
how long will it take the object to reach 15 meters?
round to the 3 decimal places.
enter an integer or decimal number more..
"ratio of wooden bats to metal bats is 2 to 1" basically means "there are twice as many wooden bats (compared to metal ones)". so if we had 3 metal bats, then we'd have 2*3 = 6 wooden bats. if we had 7 metal bats, then we have 14 wooden ones (because 2*7 = 14). and so on. the basic rule is to multiply the amount of metal bats by 2 to get the amount of wooden ones.
we can go in reverse to divide the amount of wooden bats to get the amount of metal ones. so 20/2 = 10 is the amount of metal bats.
a more formal approach is to use the proportion below to solve for x
20/x = 2/1
20*1 = x*2
20 = 2x
2x = 20
2x/2 = 20/2
x = 10
and we get the same answer.
resultant force will act on 65° n of w.
as given in the question one bulldozer exerts force of 1250 pounds in western direction and 2650 pounds in northern direction and we have to find angle a which is an angle between 1250 pounds of force and resultant force f.
therefore tan a= force on north direction/ force on west direction = 2650/1250 = 2.12
a = 64.75
a = 65° north of west.
answer: total cost earn=$1360
adult sold =45
student sold =80
adult cost twice as student cost so we can say adult sold 45+45=90
so total sold=90+80=170
to get the cost of 1 meal we divide 1360 by 170
one student meal cost=8$
one adult meal cost=8*2=16
total students meal cost=8*80=640$
total adult meal cost=16*45=720