Answer:If I’m correct I believe seven you cars for 16.45 would be better
Step-by-step explanation:
Since three cars cost 7.50 you would divide 7.50 to get the cost for each car which would give you 2.50 and since seven cars cost 16.45 you would divide 16.45 by 7 to get the cost of each car which would come out to 2.35 making it a better buy
answer:
<h2>F2= 5kN</h2>
step by step explanation
<em>Note the second diameter was used as 50cm and not 500cm</em>
given
F1=800N
D1=20cm
A1=πD1^2/4
=3.142*20^2/4
=314.2cm^2
D2= 50cm
A2=πD2^2/4
=3.142*50^2/4
=1963.75cm^2
The pressure applied on the smaller relative to the bigger end is expressed as
F1/A1=F2/A2
substitute we have
800/314.2=F2/1963.75
cross multiply we have
F2=800*1963.75/314.2
F2=1571000/314.2
F2=5000N
F2=5kN
The larger Force is 5kN
Answer:
Height of the kite is 
meters.
Ground distance from the kite to the person flying the kite is 50 meters.
Step-by-step explanation:
Given that a string of a kite is 100 meters long and it makes an angle of 60° with horizontal.
Which mans we are getting a shape of right angle triangle as shown in picture. Where "y" is the height of the kite and "x" is the ground distance from the kite to the person flying the kite. Now we can use trigonometric ratios to find the values of x and y.
![\sin\left(60^o\right)=\frac{\left[opposite\right]}{\left[hypotenuse\right]}=\frac{y}{100}](https://tex.z-dn.net/?f=%5Csin%5Cleft%2860%5Eo%5Cright%29%3D%5Cfrac%7B%5Cleft%5Bopposite%5Cright%5D%7D%7B%5Cleft%5Bhypotenuse%5Cright%5D%7D%3D%5Cfrac%7By%7D%7B100%7D)
Hence height of the kite is meters.
similarly:
![\cos\left(60^o\right)=\frac{\left[adjcent\right]}{\left[hypotenuse\right]}=\frac{x}{100}](https://tex.z-dn.net/?f=%5Ccos%5Cleft%2860%5Eo%5Cright%29%3D%5Cfrac%7B%5Cleft%5Badjcent%5Cright%5D%7D%7B%5Cleft%5Bhypotenuse%5Cright%5D%7D%3D%5Cfrac%7Bx%7D%7B100%7D)
Hence ground distance from the kite to the person flying the kite is 50 meters.
Answer: 200 times larger
Explanation (6*10^5)/(3*10^3)=2*10^2
2*100=200
The other answer was wrong because in order of operations (PEMDAS), exponents come before multiplication.
