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3 years ago

14

Yasmeen is setting up a business.

1 answer:

Anna [14]3 years ago

5 0

5000 x 6% =300
300 x 3 = $900

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3. What are the velocity and acceleration function vectors for a particle traveling in the xy-plane with position vector r(t)=(2

lianna [129]

<span>Remember::

a) velocity is the first derivative of the position vector

b) acceleration is the second derivative of the position vector or, what is the same, the first derivative of the velocity vector.

Using that, you get:

1) given: r(t)=(2+t^2, 3t)

2) v(t) = d r(t) / dt = (2t, 3)

3) a(t) = d (v(t)) / dt = (2,0)

Answer: option </span><span>b) v(t)=(2t, 3) ; a(t)=(2, 0)</span><span>
</span>

4 0

3 years ago

Find an equation of a sphere if one of its diameter has endpoints (2,1,4) and (4,3,10)

lara31 [8.8K]

Answer:

$(x-3)^2+(y-2)^2+(z-7)^2 =11$

Step-by-step explanation:

Given that a sphere has one diameter having endpoints (2,1,4) and (4,3,10)

We can find the mid point of these two points and that would be the centre

If we find distance between these two points that would be twice radius.

Distance = 2r = $\sqrt{(4-2)^2+(3-1)^2+(10-4)^2} \\=\sqrt{44}$

So radius = $\sqrt{11}$

Centre of sphere = mid point of two points

= (3, 2, 7)

Using centre radius formula sphere has equation as

$(x-3)^2+(y-2)^2+(z-7)^2 =11$

4 0

4 years ago

2−6(−5t+1) im stuck please help. Also you can't simplify it all the way

BigorU [14]

Your answer would be 30t - 4

7 0

4 years ago

Read 2 more answers

Convert 15 to a percent<br> 0.3%<br> O 3.0%<br> 30%

Fed [463]

Answer:

30% would be the anwser

Step-by-step explanation:

if you need to explain because comment

3 0

3 years ago

Pls help me with my math

Norma-Jean [14]

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

linear equation
slope-intercept form of linear equation
PEMDAS

<h3>tips and formulas:</h3>

$slope - intercept : \\ y = mx + b$
$m = \frac{y _{2} -y_1}{x _{2} -x_1 }$

<h3>let's solve:</h3>

$m = \frac{ 2 - 0}{ - 6 - ( - 3)}$

$m = - \frac{2}{3}$

$\therefore \: the \: equation \: is \: y = - \frac{2}{3}x - 2$

8 0

3 years ago