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Gnom [1K]
3 years ago
9

A truck travels beneath an airplane that is moving 160 km/h at an angle of 54.0 ◦ to the ground. How fast must the truck travel

to stay beneath the airplane? 1. 118 km/h 2. 94.0 km/h 3. 132 km/h 4. 108 km/h 5. 98.7 km/h 6. 113 km/h 7. 89.3 km/h 8. 127 km/h 9. 122 km/h 10. 103 km/h
Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer:

2. 94.0 km/h

Step-by-step explanation:

since the airplane is moving at angle of 54° from the ground, the horizontal component of the velocity is given by cos component

speed of air plane= 160 km/hr

horizontal component of velocity v= 160 cos 54°

= 94.045 km/hr

Thus  the truck must travel at an speed of  94.0 Km/hr hence second option is correct.

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hram777 [196]

Answer:

3.3m+1.4

Step-by-step explanation:

Multiply 5 and 0.9m

Multiply 5 and 0.5

5 times 0.9m is 4.5m

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Hope this helps!

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Alexeev081 [22]

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3 years ago
Jan bought 6 cookies and 4 doughnuts for 3.50. Tom bought 12 cookies and 5 doughnuts got 5.23. Write and solve a system of equat
iren2701 [21]
0.19 for one cookie and 0.59 for one doughnut

x for how much one cookie costs and y for how much one doughnut costs
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solve by substitution: (elimination would work too)
4y=3.5-6x
y=0.875-1.5x
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3 years ago
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