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MArishka [77]
3 years ago
5

Find the equation of a line that is parallel to the line y=-3x-1 and crosses the y-axis at (0,-8).

Mathematics
1 answer:
Colt1911 [192]3 years ago
3 0

Answer:

Y=-3x-3

Step-by-step explanation:

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Brogan earns $5 per week. He can earn extra money by helping with chores. He earns $2 per chore, c. Look at each expression. Sel
jekas [21]

Answer:

5+2c

Step-by-step explanation:

5 stands for the 5 dollar he will get weekly, doing chores or not, and the 2c stands for for every chore(s) he does, he will get 2 extra dollar.

have a nice day

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2 years ago
What is -5/8 + -8/9=
mariarad [96]

Answer:

-1.513888889 = -1.51

Step-by-step explanation:

-5/8 = -0.625

-8/9 = -0.8888888888

-0.625 + -0.8888888888 = -1.513888889

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3 years ago
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romanna [79]

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note that 1 \frac{1}{3} = \frac{4}{3}

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3 years ago
A discounted concert ticket is $14.50 less than the proginal price p. you pay $53 for a discounted ticket. write and solve an eq
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3 years ago
1. A new brand of hot dog claims to have a lower sodium content than the leading brand.
kherson [118]

Answer:

(a) Population mean = 314.5mg

(b) Margin of error = 21.281mg

(c) No, 350mg is not a plausible value

The new brand of hot dog has a lower sodium content on average than the leading brand

(d) Yes

Step-by-step explanation:

(a) Population mean = (370+326+322+297+326+289+293+264+327+331)/10 = 3145/10 = 314.5mg

(b) Margin of error = t×sd/√n

sd = 29.73, n = 10, degree of freedom = n-1 = 10-1 = 9

Assuming 95% confidence level

t-value corresponding to 9 degrees of freedom and 95% confidence level is 2.262

Margin of error = 2.262×29.73/√10 = 21.281mg

(c) No

Lower limit of new brand = 314.5 - 21.281 = 293.219mg

Upper limit = 314.5 + 21.281 = 335.781mg

The range of sodium content for the new brand of hot dog is between 293.219mg and 335.781mg which is lower than the leading brand (350mg)

(d) Margin of error = t×sd/√n

From the formula above, margin of error varies inversely as the square root of sample size

The smaller the sample size (n = 10) the larger the margin of error and the less accurate is the population mean

The larger the sample size (n = 40) the smaller the margin of error and the more accurate is the population mean

8 0
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