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3 years ago

Mark bought groceries two days during the week.

Mathematics

1 answer:

Lady_Fox [76]3 years ago

7 0

Answer:

Its either A or C

Step-by-step explanation: times the 45.00 x 0.15 and then try 45.00 x 1.14 it will give you the answer :D

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What transformation transforms (a, b) to (a, −b)?

koban [17]

We are given

(a, b) ---------------> (a, −b)

we can see that

x-values of both points are 'a'

which is same

while y-value of first =b

y-value of second =-b

so, y becomes as -y

and we know that

when a function is reflected about x-axis

then y becomes -y

so, option-C.................Answer

3 0

3 years ago

Read 2 more answers

A public beach in Florida charges non residents $8 per day for a fishing license and $2.50 per day for live bait. Florida reside

melamori03 [73]

For a non-resident:

$C_{nr}=8d+2.5d=10.5d$

For a resident:

$C_{r}=114+1d$

We want to know the number of days $d$ such that the two costs are equal ie $\{d|C_{nr}(d)=C_{r}(d)\}$

To do this set the two costs equal to each other:

$C_{nr}=C_{r}$

$10.5d=114+1d$

And solve for d:

$10.5d-1d=114+1d-1d$

$9.5d=114$

$d=\frac{114}{9.5}$

$d=12$

The costs will be equal when a resident and a non-resident each use the beach for 12 days.

3 0

3 years ago

A study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving (the Wall Street Journal, May

Strike441 [17]

The probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328

<h3>How to determine the probability?</h3>

The given parameters are:

Sample size, n = 100
Population proportion, p = 82%

Start by calculating the mean:

$\mu = np$

$\mu = 100 * 82\%$

$\mu = 82$

Calculate the standard deviation:

$\sigma = \sqrt{\mu(1 - p)$

$\sigma = \sqrt{82 * (1 - 82\%)$

$\sigma = 3.84$

Within ± 0.02 of the population proportion are:

$x_{min} = 82 * (1 - 0.02) = 80.38$

$x_{max} = 82 * (1 + 0.02) = 83.64$

Calculate the z-scores at these points using:

$z = \frac{x - \mu}{\sigma}$

So, we have:

$z_1 = \frac{80.36 - 82}{3.84} = -0.43$

$z_2 = \frac{83.64 - 82}{3.84} = 0.43$

The probability is then represented as:

P(x ± 0.02) = P(-0.43 < z < 0.43)

Using the z table of probabilities, we have:

P(x ± 0.02) = 0.3328

Hence, the probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328

Read more about probability at:

brainly.com/question/25870256

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4 0

2 years ago

Margo borrows $400, agreeing to pay it back with 5% annual interest after 6 months. How much interest will she pay?

nadezda [96]

$20 of interest. An easy way to think about this problem is first to solve for 10 percent which is easy because you just move the decimal to the left one place, then 5% is half of 10% which is equal to 40 so 40 divided by 2 equals 20

7 0

3 years ago

Read 2 more answers

Find the surface area of the cylinder in terms of .

Dmitriy789 [7]

<u>The surface area of the cylinder= 2 π * r^2</u>

<u>Step-by-step explanation</u>:

The surface area of each end and the surface area of the side of the cylinder are added to get surface area of a cylinder.

We know that each end of the cylinder is a circle.

So the surface area of each end of the cylinder is π * r^2

Here, r is the radius of the end

There are two ends, so their combined surface area= 2 π * r^2

<em><u>The surface area of the cylinder= 2 π * r^2</u></em>

6 0

3 years ago