All categories

3 years ago

The last one, problem 8, is the only one I need the answer to.

Mathematics

1 answer:

ZanzabumX [31]3 years ago

3 0

Answer:

Step-by-step explanation:

No, the cost will not always be proportional. This is because after the first dozen, the equation will be different.

You might be interested in

Follow this link to view Juan's work. Critique Juan's work by justifying correct solutions and by explaining any errors he made

Aleksandr [31]

Answer:

I don't no sorry please bro sorry

4 0

3 years ago

Simplify the rational expression. state any excluded values. x^2-3x-10/x+2

Natali5045456 [20]

Answer:

The answer to your question is x - 5 or x = 5

Step-by-step explanation:

$\frac{x^{2} -3x - 10}{x + 2}$

1.- Factor the numerator

x² - 3x - 10

find 2 numbers that added equal -3 and multiply equal -10.

These numbers are -5 and + 2

(x - 5)(x + 2)

2.- Simplify

$\frac{(x - 5)(x + 2)}{x + 2)}$

Delete (x +2) in both numerator and denominator

3.- Result x - 5

x = 5

7 0

3 years ago

Express the area of the entire rectangle

svlad2 [7]

Answer:

Step-by-step explanation:

6 0

3 years ago

Least common denominator of 7 and 343

ehidna [41]

Rewriting input as fractions if necessary:

7/1, 343/1

For the denominators (1, 1) the least common multiple (LCM) is 1.

Therefore, the least common denominator (LCD) is 1.

Rewriting the original inputs as equivalent fractions with the LCD:
7/1, 343/1

6 0

4 years ago

A game of chance involves spinning a wheel with 4 number on it. The wheel is designed so that the result of each spin Xhas the f

Kipish [7]

Distribution table :

X : ___ 1 _____ 2 _____ 3 ______ 4

P(x) __0.50 __0.25 __ 0.15 ____ 0.10

Answer:

1.85 ; 1.014 ;` 0.55 ; 3.042

Step-by-step explanation:

Probability distribution :

X : ___ 1 _____ 2 _____ 3 ______ 4

P(x) __0.50 __0.25 __ 0.15 ____ 0.10

The mean: E(x) = Σ(X * p(x))

(1*0.5) + (2*0.25) + (3*0.15) + (4 *0.10)

= 1.85

Standard deviation = sqrt(Var(x))

Var(x) = Σ(x²*p(x)) - E(x)²

Var(x) = ((1^2*0.5) + (2^2*0.25) + (3^2*0.15) + (4^2 *0.10)) - 1.85^2

= 4.45 - 3.4225

= 1.0275

Standard deviation = sqrt(1.0275)

Standard deviation = 1.0136567

Standard deviation(X) = 1.014

3.)

Cost of spin = $5

Amount, y to be received = 3 times the number that appears

y = 3x - cost of playing

y = 3x - 5

E(y) = E(3x - 5)

E(y) = E(3x) - 5

Recall :E(x) = 1.85

E(y) = 3(1.85) - 5

E(y) = 0.55

Standard deviation :Sd(y) =

Sd(3x - 5)

3(1.014)

= 3.042

5 0

3 years ago