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NeX [460]
2 years ago
5

A company is paying a local television station to run its commercials. The cost for running commercials is a one-time campaign f

ee and also a per-second fee for the air time of each commercial. The cost can be modeled by the equation y = 500 + 50x where x is seconds.
What is the y-intercept and what does it represent?

A. 500; it represents the per-second fee of air time

B. 500; it represents the one-time campaign fee

C. 50; it represents the per-second fee of air time

D. 50; it represents the one-time campaign fee
Mathematics
1 answer:
Margarita [4]2 years ago
8 0
The y-intercept is the value of y when x is equal to zero. From the equation,

y = 500 + 50x

the y-intercept is calculated by:

y = 500 + 50(0) = 500

Therefore, the correct answer is option B. The y-intercept is 500; it represents the one-time campaign fee.
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A drawbridge rises at a rate of 3 2/3 feet per minute. The drawbridge rises to a height of 50 feet. How long does it take the dr
k0ka [10]

Answer: Third option.

Step-by-step explanation:

You know that the drawbridge rises at a rate of 3\ \frac{2}{3} feet per minute. This means that the drawbridge rises  3\ \frac{2}{3} in a minutes.

Convert from mixed fraction to decimal number:

 3\ \frac{2}{3}\ ft=(3+0.66)\ ft=3.6\ ft

Since the drawbridge rises to a height of 50 feet, you need to apply this procedure in order to find the time the drawbridge takes to completely rise:

time=\frac{(1\ min)(50\ ft)}{3.66\ ft}=13.6\ min or 13\ \frac{7}{11}\ min

7 0
3 years ago
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A company produces 3 tons of cereal each week. How many 12-ounce cereal boxes can be filled each week?
LekaFEV [45]
First, convert 3 tons to ounces. 
3 tons = 96,000 ounces. Divide this by 12 ounces.
96,000/12 = 8000
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Hope this helps!!
8 0
3 years ago
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Which of the following coordinates exists on the line y = 3x + 1?
tankabanditka [31]

Answer:

D

Step-by-step explanation:

-2 = 3(-1) +1

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3 years ago
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Suppose a study estimated that 63% of the residents of a community (with an
Anvisha [2.4K]

Answer:

Answer choice A(57%)

Step-by-step explanation:

The margin of error is 7%. This means the 63% could either 7% too high or 7% too low. Answer choice A is the only answer choice that is within the range of percents that it could possibly be(between 56% and 70%). Answer choice B is 10% off, 3% out of the range. Answer choice C is 25% off, 18% out of the range. Answer choice D is 32% off, 24% out of the range. Hope this helps. :)

3 0
3 years ago
The approximate line of best fit for the given data points, y = −2x − 2, is shown on the graph.
Nonamiya [84]

Answer:

the answer is: '-2'

Step-by-step explanation:

" A residual value is a difference between observed y-value(from scatter plot) and the predicted y-value( from regression equation line) ".

when we look at the scatter plot we see that the value of y at x= -2  is y=0

,and when we substitute the value x=-2 into the given equation y= -2x-2

we get y=2.

so, the residual value is given as: y=0-2= -2.

Hence, the residual value at x=-2 is -2.



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2 years ago
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