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2 years ago

HELP ASAP A bicycle that usually sells for $250 is on sale for 25% off. Find the sale price.

Mathematics

2 answers:

Bezzdna [24]2 years ago

6 0

Answer:

187.5

Step-by-step explanation:

STALIN [3.7K]2 years ago

5 0

Answer:

$187.5

Step-by-step explanation:

Normal price = $250
Discount = 25%

Sale price:

$250 - 25% =
$250 - 0.25*$250 =
$250*0.75 =
$187.5

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Use synthetic division to determine whether the number k is an upper or lower bound (as specified for the real zeros of the func

Vesna [10]

Answer: k = 2 is the upper bond of the given equation.

Step-by-step explanation:

Here, Given function,

$f(x) = 2x^3 + 4x^2 + 2x - 4$ ;

Since, the coefficient of $x^3$ = 2

The coefficient of $x^2$ = 4

The coefficient of $x$ = 2

And, the constant term = - 4

By applying the synthetic division with 2,

The terms in the upper row = 2, 4, 2 and - 4

The terms in the middle row = 4, 16 and 36

And, the terms in the bottom row = 2, 8, 18 and 32

Since, 2> 0 and all the sign in the bottom row are positive.

Thus, 2 is the upper bond for real roots of this equation.

8 0

3 years ago

Read 2 more answers

Samantha Cruz has 200 coins (quarters and dimes). She has $44.00. Write a system of equations and determine how many quarters= _

marishachu [46]

Answer:

Step-by-step explanation:

how many coins: d + q = 200

value of the money .10d + .25q = 44

(ten cents for each dime and 25 cents for each quarter)

Now to solve by elimination:

1)multiply the first row by -10 so that the dimes will cancel out.

-.10d + -.10 q = 20 (don't do anything to second row)

.10d + .25q = 44

2) now add those up.

the dimes cancel out.

.15 q = 64

that does not divide evenly so there is something wrong with this problem.

4 0

2 years ago

An important factor in selling a residential property is the number of times real estate agents show a home. A sample of 23 home

yanalaym [24]

Using the t-distribution, it is found that:

a. The margin of error is of 4.7 homes.

b. The 98% confidence interval for the population mean is (19.3, 28.7).

The information given in the text is:

Sample mean of $\overline{x} = 24$ .
Sample standard deviation of $s = 9$ .
Sample size of $n = 23$ .

We are given the standard deviation for the sample, which is why the t-distribution is used to solve this question.

The confidence interval is:

$\overline{x} \pm M$

The margin of error is:

$M = t\frac{s}{\sqrt{n}}$

Item a:

The critical value, using a t-distribution calculator, for a two-tailed 98% confidence interval, with 23 - 1 = 22 df, is t = 2.508.

Then, the margin of error is:

$M = t\frac{s}{\sqrt{n}} = 2.508\frac{9}{\sqrt{23}} = 4.7$

Item b:

The interval is:

$\overline{x} - M = 24 - 4.7 = 19.3$

$\overline{x} + M = 24 + 4.7 = 28.7$

The 98% confidence interval for the population mean is (19.3, 28.7).

A similar problem is given at brainly.com/question/15180581

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Nostrana [21]

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2 years ago

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Mamont248 [21]

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3 years ago