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yanalaym
7 days ago
9

The price of a laptop is $420. The price of a phone is 35% of the price of this laptop. What is the price of the phone? A $12 B

$147 C $273 D $1200
Mathematics
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A research company surveys 8,000 people.
tester [12383]

Response:

Total individuals Favorable = 5850

Detailed explanation:

Total Individuals = 8000

Company Anticipates those who will respond Favorably = 6000

Percentage Error = \frac{2.5}{100} * 6000 = 150

Total individuals Favorable = Company Anticipates those who will respond Favorably minus Percent Error

Total individuals Favorable = 6000-150

Total individuals Favorable = 5850.

7 0
2 months ago
. A hawk drops its prey from a certain height above the ground.The height, h metres, of the prey can be modelled by h = 4 + 11 t
Leona [12618]

Answer:

The hawk releases the prey from a height of 4 meters.

It takes the prey 4 seconds to reach the ground.

Step-by-step explanation:

The equation gives insights about the height of the prey at any time starting from the moment it is dropped. Thus, to determine the drop height, we evaluate the expression at time equals zero (the drop moment). This answers the first question:

h=4+11t-3t^2\\h=4+11\,(0)-3\,(0)^2\\h=4\, \,meters

To ascertain when the prey touches the ground, we set "h" to zero (height of zero) and solve for "t".

This results in a quadratic equation that can be solved via the quadratic formula:

h=4+11t-3t^2\\0=4+11t-3t^2\\-3t^2+11t+4=0\\t=\frac{-11+-\sqrt{11^2-4\,(-3)(4)} }{2\,(-3)} \\t=\frac{-11+-\sqrt{121+48} }{-6} \\t=\frac{-11+-13 }{-6} \\t= 4\,\,and \,\, t=-\frac{1}{3}

Since negative time values are impractical, we select the positive 4 (4 seconds)

5 0
1 month ago
If g(x)=4x^2-16 were shifted 5 units to the right and 2 down, what would the new equation be?
lawyer [12517]
Try this method:
When a graph shifts right, replace 'x' with 'x' minus the number.
When it shifts down, subtract the number from 'y'.
So the final equation becomes: y = 4(x - 5)² - 18.
The answer is A.
4 0
3 months ago
Read 2 more answers
This is a cross-sectional view of candy bar ABC. A candy company wants to create a cylindrical container for candy bar ABC so th
lawyer [12517]
The response is a3.
6 0
1 month ago
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Suppose you have two urns with poker chips in them. Urn I contains two red chips and four white chips. Urn II contains three red
Zina [12379]
There are several possible outcomes. The initial composition of the urns is as follows: Urn 1 contains 2 red chips and 4 white chips, totaling 6 chips, whereas Urn 2 has 3 red and 1 white, amounting to 4 chips. When a chip is drawn from the first urn, the probabilities are as follows: for a red chip, it is probability is (2 red from 6 chips = 2/6 = 1/2); for a white chip, it is (4 white from 6 chips = 4/6 = 2/3). After the chip is transferred to the second urn, two scenarios can arise: if the chip drawn from the first urn is white, then Urn 2 will contain 3 red and 2 white chips, making a total of 5 chips, creating a 40% chance for drawing a white chip. Conversely, if a red chip is drawn first, Urn 2 will contain 4 red and 1 white chip, which results in a 20% chance of drawing a white chip. This scenario exemplifies a dependent event, as the outcome hinges on the type of chip drawn first from Urn 1. For the first scenario, the combined probability is (the probability of drawing a white chip from Urn 1) multiplied by (the probability of drawing a white chip from Urn 2), equaling 26.66%. For the second scenario, the probabilities yield a value of 6%.
8 0
2 months ago
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