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slavikrds [6]
4 years ago
10

. Roger uses his truck to plow parking lots when it snows. He wants to find a model to predict the number of service calls he ca

n expect to receive based on how much snow falls during a storm. Snow Plow Service Based on the collected data shown in the scatterplot, he uses the linear model . According to this model, c(s)=0.8s+0.29about how many service calls will Roger have in the next snow storm if 4.7 inches of snow fall? Round to the nearest tenth if necessary
Mathematics
1 answer:
expeople1 [14]4 years ago
6 0

Answer:

4.1 calls

Step-by-step explanation:

The number of calls (c) that Roger expects to get as a function of how many inches of snow fall (s), is described by the following linear model:

c(s)=0.8s+0.29

Therefore, when s = 4.7 inches, the number of service calls that Roger expects is:

c(4.7)=0.8*4.7+0.29\\c(4.7)=4.05\ calls

Rounding to the nearest tenth, Roger will get about 4.1 calls.

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If 1 inch on a map represents 20 miles, what is the mileage represented by 2.5 inches?
SOVA2 [1]

Answer:

50 miles(D)

Step-by-step explanation:

20 x 2.5

5 0
3 years ago
Help?<br>what do I do? Thanks x
Elena L [17]
The correct answer would be 3
6 0
4 years ago
Milk is a good source of many vitamins that can help us stay healthy. FDA recommends that the average vitamin A concentration fo
Lelechka [254]

Answer:

The degrees of freedom for this sample are 27.

The sample size to get a margin of error equal or less than 0.3656 is n=4450.

Step-by-step explanation:

The degrees of freedom for calculating the value of t are:

df=n-1=28-1=27

With 27 degrees of freedom and 95% confidence level, from a table we can get that the t-value is t=2.052.

The sample size to get a margin of error equal or less than 0.3656 can be calculated as:

MOE=t\cdot s/\sqrt{n}\\\\n=\left(\dfrac{t\cdot s}{MOE}\right)^2=\left(\dfrac{2.052\cdot 11.8841}{0.3656}\right)^2=66.7^2\\\\\\n=4449.13\approx4450

6 0
3 years ago
SECOND TIME POSTING<br> Find the area of the shaded region.
topjm [15]

Answer:

The answer is 25.

Step-by-step explanation:

150/6 is 25

I think that is the correct answer sorry I didn't answer before didn't see the problem.

7 0
3 years ago
Let C represent the cost in dollars and R represent the revenue in dollars. What is the break-even point? Use a table to help if
krek1111 [17]

Answer:

(5,225)

Step-by-step explanation:

The break even point is when the cost equals the revenue.

C=R

15x+150=45x

150=30x

x=5

Plug this back into the original equations to get the y value.

15*5+150=225

or 45*5=225

5 0
3 years ago
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