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3 years ago

I GIVE BRAINLILSET \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

Mathematics

1 answer:

Vesna [10]3 years ago

3 0

Answer:

Step-by-step explanation:

Profit Percent * Cost Price = Profit

20% * $1.25 =

20/100 = .2 * $1.25 =

$.25

Selling Price = Profit + Cost Price

$.25 + $1.25 = $1.5

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A company makes two calculator models, one designed specifically for financial use and the other designed for scientific use. Th

mihalych1998 [28]

Answer:

280 financial
20 scientific

Step-by-step explanation:

The linear programming problem can be formulated as ...

minimize 10f +12s subject to ...

10f +20s ≥ 3200 . . . . number of chips used

f + s ≥ 300 . . . . . . . . . .number of switches used

f ≥ 100 . . . . . . . . . . . . .minimum number of financial calculators

Graphing these inequalities, we find the feasible region to be bounded by the points (f, s) = (100, 200), (280, 20), (320, 0). The one of these that minimizes the number of production steps is ...

f = 280, s = 20

280 financial and 20 scientific calculators should be produced to minimize the number of production steps.

4 0

4 years ago

The size of a snail is equally likely any length between 2.5 and 4.5 millimeters. if you randomly encounter a snail, how long wo

fredd [130]

You need to find the average length. You use the two numbers that gave you the range. (4.5-2.5)/2+2.5 = answer
<span>
so (4.5-2.5)=2 now 2/2=1 1+2.5=3.5mm
</span><span>

(Remember PEMDAS) order of operations is important!! </span>

8 0

3 years ago

Which of the values shown are potential roots of f(x) = 3x3 â€"" 13x2 â€"" 3x 45? Select all that apply.

Verdich [7]

The potential roots of the function are, $\pm1, \ \pm3, \ \pm5, \ \pm9,\ \pm15, \ \pm45,\ \pm \dfrac{1}{3},\ \pm \dfrac{5}{3}$

And the accurate root is 3 it can be determined by using rules of the rational root equation.

<h2>Given that,</h2>

Function; $\rm f(x) = 3x^3 - 13x^2 -3x + 45$

<h3>We have to determine,</h3>

Which of the values shown are potential roots of the given equation?

<h3>According to the question,</h3>

Potential roots of the polynomial are all possible roots of f(x).

$\rm f(x) = 3x^3 - 13x^2 -3x + 45$

Using rational root theorem test. We will find all the possible or potential roots of the polynomial.

$\rm p=\dfrac{All\ the \ positive}{Negative\ factors \ of\ 45}$

$\rm q=\dfrac{All\ the \ positive}{Negative\ factors \ of\ 3}$

The factor of the term 45 are,

$\pm1, \ \pm3, \ \pm5, \ \pm9,\ \pm15, \ \pm45$

And The factor of 3 are,

$\pm1, \ \pm3$

All the possible roots are,

$\dfrac{p}{q} = \pm1, \ \pm3, \ \pm5, \ \pm9,\ \pm15, \ \pm45,\ \pm \dfrac{1}{3},\ \pm \dfrac{5}{3}$

Now check for all the rational roots which are possible for the given function,

$\rm f(x) = 3x^3 - 13x^2 -3x + 45\\\\ f(1) = 3(1)^3 - 13(1)^2 -3(1) + 45 = 3-13-3+45 = 32\neq 0\\\\ f(-1) = 3(-1)^3 - 13(-1)^2 -3(-1) + 45 =- 3-13+3+45 = 32\neq 0\\\\ f(3) = 3(3)^3 - 13(3)^2 -3(3) + 45 = 81-117-9+45 =0\\\\ f(-3) = 3(-3)^3 - 13(-3)^2 -3(-3) + 45 = -81+117+9+45 =-144\neq 0$

Therefore, x = 3 is the potential root of the given function.

Hence, The potential roots of the function are, $\pm1, \ \pm3, \ \pm5, \ \pm9,\ \pm15, \ \pm45,\ \pm \dfrac{1}{3},\ \pm \dfrac{5}{3}$ .

For more details about Potential roots refer to the link given below.

brainly.com/question/25873992

8 0

2 years ago

Look at the figure: An image of a right triangle is shown with an angle labeled x. If tan x° = e divided by 8 and sin x° = e div

Nastasia [14]

Answer:

cos x = 8/f.

Step-by-step explanation:

We can use the identity :

tan x = sin x / cos x.

Substituting:

e/8 = e/f / cos x

e/8 * cos x = e/f

cos x = e/f * 8/e

cos x = 8e / fe

cos x = 8/f.

8 0

3 years ago

Read 2 more answers

Whose problem is best modeled by a division expression?

puteri [66]

Answer:

only Tanveer's

Step-by-step explanation:

7 0

4 years ago