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oksian1 [2.3K]
2 years ago
15

A child throws a ball with a speed of 5 feet per second at an angle of 73 degrees with the horizontal. Express the vector descri

bed in terms of i and j.
Mathematics
1 answer:
maxonik [38]2 years ago
3 0

Answer:

  v = 5cos(73°)i +5sin(73°)j

Step-by-step explanation:

The components of the velocity vector are ...

  horizontal (i direction): 5·cos(73°)

  vertical (j direction): 5·sin(73°)

Then the velocity vector is the sum of these component vectors:

  v = 5cos(73°)i +5sin(73°)j

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Arada [10]
For a), this is clearly a given as it is literally to the right of where it says “Given:”
For b), since ON bisects ∠JOH, this means that it splits it into two separate angles - JON and HON, which are similar due to that bisects mean that it splits it equally into two halves
For c), since NO is the same thing as NO, it is equal to itself
For d), since AAS (angle-angle-side) congruence states that if there are two angles that are congruent (proved in a) and b) ) as well as that a side is congruent (proved in c) ), two triangles are congruent
For e), since two triangles are congruent, every side must have one side that it matches up to in the other triangle. As the opposite side of angle H is JO and the opposite side of angle J is OH, and ∠J=∠H, those two are congruent. As JN and HN are the two sides left, they must be congruent.

Feel free to ask further questions!
4 0
3 years ago
Estimate each product 3/4 times 23
storchak [24]
We would have to convert 3/4 to a decimal of 0.75 (the equivalent)
0.75*23 = 17.3

-or-

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6 0
2 years ago
Wich measure is less than 435 inches
podryga [215]
435 inches = 36 1/4 ft.

So, the answer would be D) 12 ft. 3 in. hope this helps
3 0
3 years ago
John finds a toy train set John finds a toy train set on sale for 20% off at a toy store. The original price was $35. John
Helen [10]

Well here's your answer straight <u><em>he must pay 29.82$ </em></u>and here's my work,

  1. 20% of 35 is 7 and since its 20% off we must subtract 35-7=28
  2. Next it said there's a 6.5 tax so that means we are adding on to 28$
  3. 6.5 of 28 is 1.82 so we add 28+1.82 which equals your answer 29.82

5 0
3 years ago
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Answer:

2.6666666e+32

Step-by-step explanation:

1.add

2.multiply

3. you have your answer

6 0
3 years ago
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