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3 years ago

A newspaper charges $3 per line for the first 4 lines plus a $20 to advertise.

Mathematics

1 answer:

sineoko [7]3 years ago

6 0

Answer:

it is 32

and it is continuous

Step-by-step explanation:

And for the last one is the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

i hope it helps :)

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Sales tax is 7%. If c represents the retail cost of an item, which of the following expressions represent(s) the total cost of t

Lilit [14]

Answer. C + .07c

Step-by-step explanation:

C is retail. Sales tax of 7% (.07) is added to that retail cost to reach the total sales price

4 0

3 years ago

Read 2 more answers

WILL MARK BRAINLIEST!!!! What is 40%, 1/4, 25%, 1/3 in least to greatest?

Ket [755]

The order is 1/4, 25%, 1/3, 40%

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3 years ago

A candy company uses 8 gallons of corn syrup to make 1,776 pieces of candy. If they use 52 gallons of corn syrup per hour, how m

kondor19780726 [428]

Answer: 11,544 pieces of candy are made per hour.

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

Gallons of corn syrup used: 8
Pieces of candy produced: 1,776
gallons of corn syrup per hour: 52

If we apply proportions:

8 /1,776 = 52/x

Where x is the pieces of candy made per hour.

Solving

x = 52x1, 776 /8

x = 11,544

11,544 pieces of candy are made per hour.

4 0

3 years ago

Solve for x in the equation x2 + 4x-4-8.

Arte-miy333 [17]

Answer:

Ox=26+7

Step-by-step explanation:

7 0

3 years ago

A recent survey based on a random sample of n=470 voters, predicted that independent candidate for the mayoral election will get

julsineya [31]

I have an expression

$\sigma = \sqrt{p(1-p)/n}$

floating around in my head; let's see if it makes sense.

The variance of binary valued random variable b that comes up 1 with probability p (so has mean p) is

$E( (b-p)^2 ) = (-p)^2(1-p) + (1-p)^2p = p(1-p)$

That's for an individual sample. For the observed average we divide by n, and for the standard deviation we take the square root:

$\sigma = \sqrt{p(1-p)/n}$

Plugging in the numbers,

$\sigma = \sqrt{.24(1-.24)/490} = 0.019 = 1.9\%$

One standard deviation of the average is almost 2% so a 27% outcome was 3/1.9 = 1.6 standard deviations from the mean, corresponding to a two sided probability of a bit bigger than 10% of happening by chance.

So this is borderline suspect; most surveys will include a two sigma margin of error, say plus or minus 4 percent here, and the results were within those bounds.

7 0

3 years ago