Use Descartes rule to determine the possible number of positive and negative solutions for the polynomial: f(x)=10x^4-21x^2+11​

step by step explanation:

Jake brought a car = 1500rs

Jake sell the car = 1800

profit = sp-cp

so profit = 1800-1500 = 300

profit percent = gain/cp×100

profit percent = 300/1500×100

profit percent = 20% (double zero are cancel and 300 divided by 15)

Answer:

Part 2. Evaluate: C(-1).

Step-by-step explanation:

How do i solve for number 3.

Answer:

I think its a non linear graph

Answer:

5 is the highest common factor of 40 and 25

Hey there! Your answer is:

17692.4142

Hope this helps! :D

gg

Step-by-step explanation:

You can multiply

39 • 24 and it gives you = 936

Answer:

A - $14.06

Step-by-step explanation:

1) Divide :

7 / 100 = 0.07

2) Multiply :

0.07 * 13.14 = $0.9198

3) Add :

0.9198 + 13.14 = $14.0598

4) Round to the nearest decimal :

So if you round you would get $14.06

Answer:

Option A

Step-by-step explanation:

Given the following question:

7% of $13.14

To find the answer we simply use the formula to calculate percentage.

[tex]\frac{t\times i}{100}[/tex]
[tex]\frac{7\times13.14}{100} =91.98\div100=0.9198[/tex]
[tex]0.9198[/tex]
Round to the nearest cent:
[tex]0.9198[/tex]
[tex]9>5[/tex]
[tex]0.92[/tex]
Add the initial cost and the sales tax:
[tex]13.14+0.92=14.06[/tex]
[tex]14.06[/tex]

The items after a 7% sales tax costs "$14.06 dollars" or option A.

Hope this helps.

Answer:

13.86

Step-by-step explanation:

Note m∠ADB = m∠ABC, and m∠A = m∠A, so

ΔABD ~ ΔABC

AD : x = x : AC

AD : x = x : (AD + DC)

12 : x = x : 16

x^2 = 12 * 16 = 192

[tex]x=\sqrt{192} = 13.86[/tex]

Answer:

Assuming this is for a Conic Section. There is no property as it does not match a conic section.

From the computation regarding the series, it can be deduced that the sum of the first two terms will be 18.

From the information given, it was stated that the transport charge starts with a minimum charge of R8, and thereafter it was increased by R2 for each kilometer.

The series is also given as S. = 8 + 10 + 12 + 14 +... Therefore, the sum of the first two terms will be:

= 8 + 10

= 18

Also, expressing T2 in terms of S, and S2 will be T2 = S + S2.

Learn more about arithmetic series on:

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Answer:

$18,112.45 (nearest cent)

Step-by-step explanation:

Let y = value of the boat

Let x = the number of years

If the boat depreciates in value by 15% each year, then each year that goes by, it is worth 85% of the previous year's value (since 100 - 15 = 85)

85% = 85/100 = 0.85

Therefore, the equation is:  [tex]y = 92000 \times 0.85^x[/tex]

So, when x = 10:

[tex]\implies y = 92000 \times 0.85^{10}=18112.45[/tex]

Answer:

C. 25%

Step-by-step explanation:

.25x13,500=3,375

13,500-3,375=10,125

Hope this helps. :)

Answer:

69/61+-34/61i

Step-by-step explanation:

i think this is correct, hope this helped!

Answer:

24

Step-by-step explanation:

First find the volume of box A (12x2x2)

A=48

Next since box B is half the volume of box A divide 48 by 2

B=24

:)

Answer:

c hope this help

Step-by-step explanation:

Answer:

5/18 of a semicircle

5π/18 radians

Step-by-step explanation:

50/180 = 5/18 of a semicircle

5π/18 radians

[tex] \sqrt{45} + \sqrt{18} [/tex]

[tex] = \sqrt{3 \times 3 \times 5} + \sqrt{2 \times 3 \times 3} \\ = \sqrt{ {3}^{2} \times 5 } + \sqrt{ {3}^{2} \times 2 } [/tex]

[tex] = 3 \sqrt{5} + 3 \sqrt{2} [/tex]

[tex] = 3( \sqrt{5} + \sqrt{2} )[/tex]

Answer:

[tex]3( \sqrt{5} + \sqrt{2} )[/tex]

Hope you could understand.

If you have any query, feel free to ask.

Answer: A

Step-by-step explanation:

The quotient is x² + 4x +3. Then the correct option is A.

A quotient in mathematics is the amount created by dividing two numbers. In mathematics, the term "quotient" is frequently used to refer to the integer portion of a division, as well as to a fraction or a ratio.

The quotient is calculated as:-

x - 5 ) x³ - x² - 17x -15 ( x² + 4x + 3

         -x³  + 5x²

      _________________

          4x² - 17x - 15

         -4x² + 20x

       _________________

                   3x -15

                 -3x + 15

       _________________

                         0

Hence, the quotient is  x² + 4x +3.

To know more about quotient follow

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Answer:

n ≤ 18

Step-by-step explanation:

The students can be 18 but they can't be greater than 18 so the inequality must be n ≤ 18.

Solution (Part-A)

Note that:

Let's reread the clue carefully.

{A class} must have {fewer} than {18 students}

     ↥                              ↥                        ↥

     n                             <                        18

The inequality formed: n < 18

This means that the solution of the inequality can be anything except 18 or above 18.

Solution (Part-B)

Note that:

Let's reread the clue carefully.

{The class} must have {at least} {15 students}

      n                                  ≥                15

The inequality formed: n ≥ 15

This means that the solution of the inequality can be 15 or less than 15.

Solution (Part-C)

The value of n that can be a solution of both inequalities can be 15, 16, and 17.

Hoped this helped!

Answer:

35cm²

Step-by-step explanation:

(7 x 10) ÷ 2 = 35

Area equation: (b x h) ÷ 2 = a

Answer:

1/36

Step-by-step explanation:

6 can be put over 1.

Our equation:

[tex]\frac{1}{6} \div\frac{6}{1}[/tex]

Find the reciprocal (opposite) of 6/1, then change to sign to multiplication:

[tex]\frac{1}{6} \times\frac{1}{6} =?[/tex]

Solve:

[tex]\frac{1}{6} \times\frac{1}{6} =\frac{1}{36}[/tex]

Your answer is 1/36.

Answer:

ok so from looking at this if he earns 14 dollars he saves 5 so he saves

5/14 so lets just multiply this by the 56

56*5/14=20

so he saves 20

20

Hope This Helps!!!

Answer:

[tex]y=Ce^{2x}+\frac{3}{2}[/tex]

Step-by-step explanation:

[tex]y'+2y=3\\\\\frac{dy}{dx}+2y=3\\ \\\frac{dy}{dx}=3-2y\\ \\dy=(3-2y)dx\\\\\frac{1}{3-2y}dy=dx\\ \\\int\limits {\frac{1}{3-2y}dy=\int dx}\\\\\frac{1}{2}ln(|3-2y|)=x+C\\\\ln(|3-2y|)=2x+C\\\\3-2y=e^{2x+C}\\\\3-2y=Ce^{2x}\\\\-2y=Ce^{2x}-3\\\\y=-\frac{Ce^{2x}}{2}+\frac{3}{2}\\ \\y=Ce^{2x}+\frac{3}{2}[/tex]

Answer:

8 cookies left to be baked

Step-by-step explanation:

Len

Len bakes 1/3 of 30 cookies

To find 1/3 of 30, divide 30 by 3 then multiply by 1:

[tex]\implies \frac{30}{3} \times1=10 \times 1=10[/tex]

Therefore, Len bakes 10 cookies

Sallesh

Sallesh bakes 2/5 of 30 cookies

To find 2/5 of 30, divide 30 by 5 then multiply by 2:

[tex]\implies \frac{30}{5} \times2=6 \times 2=12[/tex]

Therefore, Sallesh  bakes 12 cookies

Cookies left to bake

To calculate how many cookies are left to bake, subtract the found number of cookies Len and Sallesh have baked from 30:

30 - 10 - 12 = 8

So there are 8 cookies left to be baked.

Total cookies both baked

[tex]\\ \tt\longmapsto \dfrac{1}{3}+\dfrac{2}{5}[/tex]

[tex]\\ \tt\longmapsto \dfrac{5+6}{15}=\dfrac{11}{15}[/tex]

Cookies left:-

[tex]\\ \tt\longmapsto 30-11/15(30)=30-22=8[/tex]

Answer:

Billy has 7 toy cars.

Step-by-step explanation:

If Tommy has 12 toy cars, and Billy has 5 less cars than Tommy, then Billy has 7 toy cars.

12 - 5 = 7

Step-by-step explanation:

first you have to find the lcm of 42 and 33

=462

then you're going to take the lcm and subtract the price of the vase from the lcm

=>462-40

=422

then now you're going to take the answer and divide it by the cost of each rose

=>422 ÷ $2

=211 roses at Weston Florist

then you're going to do the same for Harper's flowers

=>462-30

=432

=>432÷3

=144 roses at Harper's Flowers