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Nataly [62]
3 years ago
9

Object A has a position as a function of time given by A(t) = (3.00 m/s)tî + (1.00 m/s2)t2ĵ. Object B has a position as a functi

on of time given by B(t) = (4.00 m/s)tî + (-1.00 m/s2)t2ĵ. All quantities are SI units. What is the distance between object A and object B at time t = 3.00 s?
Mathematics
1 answer:
agasfer [191]3 years ago
3 0

Answer:

18.25m

Step-by-step explanation:

Subtracting the two Vectors we have

= 3ti - 4ti + t^2j - - t^2j

=- 1ti + 2 t^2j

= The distance between the lines is given by

= Squaroot of ( ( -3)^2 +( 2(3)^2 )^2

= Squaroot of 9 +324

= Squaroot of 333

= 18.25m

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Need answers ASSAP
ollegr [7]
Data:
r (radius) = 3.5 in
h (height) = 8 in
Adopt: \pi \approx3.14
V (volume) = ?
Ink cost per cubic inch = $0.05/in³
Total cost: ?

<span>Calculate the volume of the paint bucket (its formed being cylindrical), we have:
</span>V =  \pi *r^2*h 
V = 3.14 *3.5^2*8 
V = 3.14*12.25*8
\boxed{V = 307.72\:in^3}

<span>What was the total cost of the paint?

</span>price($)___measure(in³)
0.05 ---------- 1
y -------------- 307.72

It is made the rule of three: (<span>directly proportional)
</span>
\frac{0.05}{y} = \frac{1}{307.72}
multiply cross
1*y = 0.05*307.72
y = 15.386\:\to\:\boxed{\boxed{y\approx\$15}}\end{array}}\qquad\quad\checkmark

Answer:
<span>the total cost of the paint is $15</span>
7 0
3 years ago
What is the slope of a line between (-4,14) and (-16,8)
Bess [88]

Answer:

\frac{1}{2}

Step-by-step explanation:

slope :

slope \:  =  \:  \frac{y2 - y1}{x2 - x1}  =  \frac{8 - 14}{ - 16 -  - 4}  =  \frac{ - 6}{ - 12}  =  \frac{1}{2} = 0.5

7 0
3 years ago
Solve for y.<br> -3 =7 (У - 9/7)
kaheart [24]

Answer:

y = 6/7

Step-by-step explanation:

-3 = 7(y - 9/7)

simply right side

-3 = 7y - 9

then

-3 + 9 = 7y

6 = 7y

y = 6/7

5 0
2 years ago
Find the arc length of the partial circle.
amid [387]

The arc length of the partial circle is 7.5π

<h3>Calculating arc length</h3>

From the question, we are to determine the arc length of the partial circle

The length of an arc can be calculated by using the formula

l = \frac{\theta}{360^\circ} \times 2\pi r

Where l is the length of the arc

\theta is the angle subtended

and r is the radius

From the diagram,

θ = 270°

r = 5

Putting the values into the equation, we get

l = \frac{270 ^\circ}{360^\circ} \times 2\pi \times 5

l = \frac{3}{4} \times 2\pi \times 5

l = \frac{30\pi}{4}

l = \frac{15}{2}\pi OR 7.5π

Hence, the arc length of the partial circle is 7.5π

Learn more on Calculating arc length here: brainly.com/question/16552139

#SPJ1

3 0
2 years ago
What is the GCF of the 48and16
zavuch27 [327]
The GCF would be 16.
6 0
4 years ago
Read 2 more answers
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