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3 years ago

6

Marissa researched the cost to have custom T-shirts printed by several local and online vendors. She found that each store’s cha

rge for the job could be modeled by a linear function that combined a flat charge for artwork with a per T-shirt rate. Marissa plotted the functions on a coordinate grid and found that two of the functions produced lines that had the same y-intercept. How should Marissa interpret this result?

2 answers:

myrzilka [38]3 years ago

8 0

I’m slightly confused about the wording of the question but if both the same y-intercept that means both company’s have the same flat rate charge for artwork.

Crazy boy [7]3 years ago

6 0

Answer:

The answer is B.) Those two vendors charge the same flat rate for artwork.

Explanation:

I did the test on edge 2020 and got 100%

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A car sits in an entrance ramp to a freeway, waiting for a break in the traffic. The driver sees a small gap between a van and a

masya89 [10]

Answer:

1

$a = 2.82 \ m/s^2$

2

$t = 8.87 \ s$

3

$s = 204 \ m$

Explanation:

From the question we are told that

The speed of the car is $v = 25.0 \ m/s$

The length of the ramp is $d = 111 \ m$

The constant velocity of the traffic $v_t = 23.0 \ m/s$

Generally the acceleration of the car is mathematically represented as

$a = \frac{v^2 - u^2 }{2d}$

Here u is equal to zero given that the car started from rest so

$a = \frac{25^2 - 0^2 }{2 * 111}$

=> $a = 2.82 \ m/s^2$

Generally the time taken is mathematically represented as

$t = \frac{ v - u}{ a}$

=> $t = \frac{ 25 - 0}{2.82}$

=> $t = 8.87 \ s$

The distance traveled by the traffic is mathematically represented as

$s = v_{t}t + \frac{1}{2} a t^2$

Here a is zero given that the traffic was moving at constant speed

=> $s = 23 * 8.87$

=> $s = 204 \ m$

7 0

4 years ago

What is the general equation for a double-displacement reaction?

Vedmedyk [2.9K]

Explanation:

I know its AX+BY--->AY+BX

7 0

3 years ago

Why is an iceberg more dense than a ship?

Serhud [2]

Answer:

icebergs float on water because ice is less dense than water. The same is true for a boat: a boat floats on water because, overall, it is less dense than the water.

Explanation:

7 0

2 years ago

Light from a helium-neon laser (λ=633nm) passes through a circular aperture and is observed on a screen 4.0 m behind the apertur

devlian [24]

Answer:

d = 0.247 mm

Explanation:

given,

λ = 633 nm

distance from the hole to the screen = L = 4 m

width of the central maximum = 2.5 cm

2 y = 0.025 m

y = 0.0125 m

For circular aperture

$sin \theta = 1.22\dfrac{\lambda}{d}$

using small angle approximation

$\theta = \dfrac{y}{D}$

now,

$\dfrac{y}{D} = 1.22\dfrac{\lambda}{d}$

$y = 1.22\dfrac{\lambda\ D}{d}$

$d = 1.22\dfrac{\lambda\ D}{y}$

$d = 1.22\dfrac{633\times 10^{-9}\times 4}{0.0125}$

d =0.247 x 10⁻³ m

d = 0.247 mm

the diameter of the hole is equal to 0.247 mm

5 0

3 years ago

2. Suppose that a parallel-plate capacitor has circular plates with radius R = 30 mm and a plate separation of d = 5.0 mm. Suppo

seropon [69]

Answer:

The maximum value of the induced magnetic field is $2.901\times10^{-13}\ T$ .

Explanation:

Given that,

Radius of plate = 30 mm

Separation = 5.0 mm

Frequency = 60 Hz

Suppose the maximum potential difference is 100 V and r= 130 mm.

We need to calculate the angular frequency

Using formula of angular frequency

$\omega=2\pi f$

Put the value into the formula

$\omega=2\times\pi\times60$

$\omega=376.9\ rad/s$

When r>R, the magnetic field is inversely proportional to the r.

We need to calculate the maximum value of the induced magnetic field that occurs at r = R

Using formula of magnetic filed

$B_{max}=\dfrac{\mu_{0}\epsilon_{0}R^2\timesV_{max}\times\omega}{2rd}$

Where, R = radius of plate

d = plate separation

V = voltage

Put the value into the formula

$B_{max}=\dfrac{4\pi\times10^{-7}\times8.85\times10^{-12}\times(30\times10^{-3})^2\times100\times376.9}{2\times130\times10^{-3}\times5.0\times10^{-3}}$

$B_{max}=2.901\times10^{-13}\ T$

Hence, The maximum value of the induced magnetic field is $2.901\times10^{-13}\ T$ .

7 0

3 years ago