Which one is an example of an equation?

Answer:

P(x)= x ^4-3x^3+x^2-4    

Step-by-step explanation:

Given data

R(x) = 2x ^4-3x^3+2x-1

c(x)=x^4-x^2+2x+3

We know that

P(x)=R(x)-C(x)

Hence

P(x)= 2x ^4-3x^3+2x-1-(x^4-x^2+2x+3)

open bracket

P(x)= 2x ^4-3x^3+2x-1-x^4+x^2-2x-3

Collect like terms

P(x)= 2x ^4-x^4-3x^3+x^2-2x+2x-3-1    

P(x)= x ^4-3x^3+x^2-4    

Answer:

There are 406 students in the school

Step-by-step explanation:

Let the number of students in the school be x

The total ratio is 11 + 3 = 14

The ratio that buys lunch is represented by 3

So, we have it that;

3/14 * x = 87

3x = (14 * 87)

x = (14 * 87)/3

x = 406

Answer:

Since a fraction represents a division, we should do that division to know what the value of a fraction is. The larger numerator, the larger the value of the fraction will be; and the larger denominator, the smaller the fraction will be. ...

Step-by-step explanation:

Answer:

What they said

Step-by-step explanation:

Answer:

≈113.09734

Step-by-step explanation:

A=πr2=π·62≈113.09734

Answer:

Refer the attachment

Hope its helpful for you

Answer:

3 1/3 miles per hour

Step-by-step explanation:

(5/2 ÷ 3/4) = (s ÷1)

(5/2 ÷ 3/4) = 10/3

10/3 = s/1

cross-multiply:

3s = 10

s = 10/3

s = 3 1/3 miles per hour

Answer:

3 1/3 mph

Step-by-step explanation:

-____________________-

Answer:

A and B are factored correctly

Step-by-step explanation:

C does not equal 1277

52 - 8(50)3

52 - 720(3)

52 - 2160

= 2108

Answer:

7pi/20 radians

Step-by-step explanation:

63         pi

------ x---------- =  63pi/180

1           180

63pi/180 simplified is 7pi/20 radians.

Answer:

Step-by-step explanation:

y=-1/5x

x             y

-4           -4/5

-10        2

0          0

-50    -10

Answer:

225

Step-by-step explanation:

√x - 3 + 12 = 24

√x + 9 =24

√x = 24 - 9

√x = 15

Squaring on both sides,

( √x )^2 = 15^2

x = 225

Answer:

x=225

Step-by-step explanation:

√x-3+12=24

Combine -3 and 12

√x+9=24

Subtract 9 from 24

√x=15

Now do the opposite of a square root to the other side to remove the square root from the x

x=15^2

x=225

Answer:

X? or  question???????

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

side 5 and side 12 where the angle is you can form a square in the corner

Answer:multiplicando de 2 en dos hasta llegar a 40

Step-by-step explanation:

-6,-4-2,0,2,4,6,8,10,

Answer:

a)

Sample Space of Probability model is - S' = { [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] }

b)

Probability of Event 1 , P(1) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 2 , P(2) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 3 , P(3) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 4 , P(4) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Step-by-step explanation:

Given - Murray spins the pointer of the spinner as shown .

To find - a. What is the sample space for the probability model?

              b. What is the probability of each event in the sample space?

Proof -

The Sample space is the set of all possible outcomes.

So,

Sample space becomes -

S = { 3, 5, A, Y, 3, 5, A, Y}

Total number of outcomes, n(S) = 8

Now,

We can see that There are 4 types of event

Event 1 : 3

Event 2 : 5

Event 3 : A

Event 4 : Y

So,

Probability of Event 1 , P(1) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 2 , P(2) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 3 , P(3) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 4 , P(4) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Now,

Sample Space of Probability model is -

S' = { [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] }

∴ we get

a)

Sample Space of Probability model is - S' = { [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] , [tex]\frac{1}{4}[/tex] }

b)

Probability of Event 1 , P(1) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 2 , P(2) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 3 , P(3) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Probability of Event 4 , P(4) = [tex]\frac{2}{8} = \frac{1}{4}[/tex]

Answer:

132 cm^2

Step-by-step explanation:

Area of trapezoid = 1/2 ( (7 + 19) * 8) = 26*4 = 104 cm^2

Area of rectangle = 4 x 7 = 28 cm^2

104 cm^2 + 28 cm^2 = 132 cm^2

If my answer is incorrect, pls correct me!

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-Chetan K

Answer:

20 is to 56 as 3 is to x

20x= 8.2

Step-by-step explanation:

f(x)= 2x² + 5x – 3, then what is f(–2)?. Possible Answers:. – 137.

Answer:

24542.26 is the final balance

Answer:

(x + 5)**2 + (y + 2)**2 = 25

Step-by-step explanation:

We know that the general equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2, where ( h, k ) is the center and r is the radius. The graph shows the center at (-5, -2), and the radius of 5. So plugging this in

(x - -5)**2 + (y - - 2)**2 = 5**2

(x + 5)**2 + (y + 2)**2 = 25

Answer:

25.12 in³

Step-by-step explanation:

v = (1/3)πr²h

Plug in the givens

v = (1/3)(3.14)(4/2)²(6)

v = (1/3)(3.14)(4)(6)

v = 25.12

Answer:

Step-by-step explanation:

23.569

23.75

23.8

23.98

Answer:

C. 5^10

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

All you have to do is add the exponents