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svetoff [14.1K]
3 years ago
13

8 cookies eaten in 2 minutes

Mathematics
1 answer:
Vika [28.1K]3 years ago
8 0

Answer:

wow so what's the question then

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A ball is kicked from ground level with a velocity of 20 m/s at 30 degrees above the horizontal. Determine the horizontal displa
olga55 [171]

Answer:the horizontal displacement is 34.64 meters

The maximum height is 15 meters

Step-by-step explanation:

As the ball moves from the ground at 30 degrees, it travels through a parabolic path. It can therefore be likened to a projectile. The horizontal displacement to where it lands is the range. The formula for determining range,R is

R = U^2Sin2#)/g

Where

U represents the initial velocity of the ball

g is acceleration due to gravity

# represents the angle above the horizontal.

From the information given

# = 30 degrees

U = 20 m/s

g = 10m/s^2

R = 20^2Sin2×30)/10 = (400Sin60)/20 = (400×0.8660)/10

= 34.64 meters

To determine the maximum height of the ball, H,

H = (U^2Sin^2#)/2g

H = (20^2 × Sin^2 30)/2×10

H = (400 × 0.866^2)/20 = 15 meters

4 0
3 years ago
A principal spent $7 on c calculators for her school. Which expression shows the total cost of the calculators?
makkiz [27]

Answer:

C.

Step-by-step explanation:

You are multiplying $7 by c calculators.

3 0
2 years ago
Draw a rectangle to show that: 6(3+a) = 18 + 6a
VARVARA [1.3K]
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6(3+a)=18+6a


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6 0
3 years ago
The sum of a number and seven is less than 12
marin [14]

Answer:

Step-by-step explanation:

X+7 < 12

3 0
3 years ago
Why do you think people who are good at math are usually successful on their jobs?
Sergeu [11.5K]
Hi! a lot of jobs require math in the real world. for instance, a architect has to get all the math correct on a building, otherwise one wrong measurement and it could fall. a lot of jobs involve math.

hope this helps!:)
6 0
2 years ago
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