Last one lol Thx for helping if u do

Mathematics

1 answer:

goldenfox [79]3 years ago

8 0

The answer is A.

We know that p must be larger than d since a discount means something will be cheaper. Then we know that $2.50 is essentially what p-d should equal to (p-d =2.50)

Then you work through the various tables and find which values will consistently give you 2.50 as the difference between p and d.

For example in table A:

3.00-0.15=2.50
4.00-1.50=2.50
5.00-2.50=2.50
6.00-3.50=2.50

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1. blessing had 180 goats. She sold out of her

Sauron [17]

Answer:

I think It's A. How many Goats Did She Sell?

Step-by-step explanation:

if she Sold Out of her goods To her dad. I am Thinking Of How many goats Are left.

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4 years ago

A particular curve is represented parametrically by x=cost, y=−sint, t∈[0,2π]. (a) As t increases on [0,2π], in which direction

cestrela7 [59]

Answer:

a) clockwise sense

b) x² + y² = 1

c) y ∈ [0,1]

Step-by-step explanation:

a) x = cos (t) y = -sin (t)

for t ∈ [ 0 , 2π ]

for t = 0 point P is x = cos (0) = 1 y = -sin (0) y = 0

The point is on the x axis

Now let´s see what happens for t = π/4

x = cos (π/4) x = √2/2 and y = - sin (π/4) y = - √2/2

Note π/4 is 45°

The coordinates of the new point P ´(t = π/4) are in the fourth quadrant

that means the point is moving clockwise sense.

b) x = cos(t)

y = -sin(t)

Squaring on both sides of each equation we get:

x² = cos²t

y² = sin²(t)

Adding side by side

x² + y² = cos²t + sin²t

x² + y² = 1

Values for y are y ( 0 , 1)

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3 years ago

Three women, Chantel, Marissa, and Qian, enjoy running laps around a circular track. Each women runs at a constant speed. It tak

lubasha [3.4K]

It takes 150 seconds for Qian to complete the track.

Let she runs the track in the clockwise direction.

In 60 seconds, she runs $\frac{60}{150}$ = $\frac{2}{5}$ th of the track.

Since she meets Marissa, who is running in the opposite (counter clockwise) direction in every 60 seconds, Marissa should have completed $\frac{3}{5}$ th of the track.