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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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NEED HELPPPP<br> Change 19 and three fourths% to a fraction or a mixed number.
Blizzard [7]

Answer: 19.75/100

Step-by-step explanation:

A percentage is out of 100 so 19.75% is 19.75 out of 100

4 0
3 years ago
Solve this problem for the equation for y, 2x + 6 = -y
VashaNatasha [74]

Answer:

multiply the whole equation by -1 to get y=2x+6

Hope that's what you wanted

8 0
3 years ago
HELPPPP!!! please!!!
natita [175]

By looking at the graph, we can see that the shape is a quarter of a circle.

The area of a circle is:

a =  \frac{1}{2} \pi {r}^{2}

So, this "quarter circle" is:

a =  \frac{1}{4}  \times  \frac{1}{2} \pi {r}^{2}

R is the radius (the diagram shows the radius is 8), so we can now find the area:

a =  \frac{1}{4}  \times  \frac{1}{2} \pi  \times {8}^{2}  \\ a =  \frac{1}{8} \pi \times 64 \\  \\ a =  \frac{64\pi}{8}  \\ a = 8\pi

The area is 8π.

7 0
3 years ago
Read 2 more answers
The value of a car after t years can be found using the formula V = C(1 - r)t, where V is the current value of the car, C is the
Stells [14]
The given formula is
V = C(1-r)^{t}

Therefore
(1-r)^{t} =  \frac{V}{C} \\\\ 1-r = ( \frac{V}{C} )^{1/t} \\\\ r = 1 - ( \frac{V}{C} )^{1/t}

Given:
C = $25,000
V = $12,000
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C/V = 0.48
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Therefore
r = 1 - 0.48^{0.2222} = 0.1505 = 15.05\%

Answer: 15% (nearest integer)

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3 years ago
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Vsevolod [243]

Answer:

48

Step-by-step explanation:

Sam had 36 books

Jim had 12

after same gave Jim 12 books, they each had 24 books

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3 years ago
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