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oksian1 [2.3K]
3 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]3 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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PLEASE HELP! Since AB=1 and 1=BC, BC=AB by which property?
erastovalidia [21]

Substitution.

Here is an example.

Let x be equal to 3 and y equal to 3.

x=3, y=3

From this we can conclude that the values of both x and y are equal to three therefore x and y have the same value and are equal.

x\wedge y=3\Longrightarrow x=y

Here in your case we have:

AB=1, BC=1 \\AB\wedge BC=1\Longrightarrow AB=BC

Hope this helps.

r3t40

7 0
3 years ago
Creation of reproductive cells (gametes) requires...​
creativ13 [48]

Answer: a sperm and an egg

Step-by-step explanation:

3 0
3 years ago
Plz help me .. I am really stumped!!!!!!! part of the set for a play is a big triangular piece of plywood. the area of the trian
saul85 [17]
The way to find the area of a triangle is A=\frac{B*H}{2}
if the base is 3 feet longer then the height we can write it like this B=H+3

now we can add it to our area equation
20=\frac{H(H+3)}{2}
20=\frac{ h^{2} +3h}{2}
40=H^{2}+3H
10\frac{1}{3}=H^{2}
h=3.2ft

3 0
3 years ago
A more than 6 is -30 solve problem
erastovalidia [21]

Answer:

a = =36

Step-by-step explanation:

a + 6 = -30

make a on its own

a = -30 - 6

a = =36

8 0
3 years ago
NEED HELP WILL MARK BRAINLIEST ANSWER
GREYUIT [131]
Your answer would be the first one because a reflection is when the object is facing itself 
The red corner should face itself 
Hope This Helps! :)

3 0
3 years ago
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