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3 years ago

A gas company uses formula c=26+0.05 t worI out the charge t a customer each month

Mathematics

1 answer:

DochEvi [55]3 years ago

7 0

Answer:

more info please!!!

Step-by-step explanation:

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Graph the equation. y=5/17(x-1)(x-9)

Anni [7]

Answer:

Attached Image

Step-by-step explanation:

Vertex: (5, -5)

X-Intercepts: (1,0) (9,0)

Y-Intercepts: (0, 2.813)

hope this helps :)

7 0

2 years ago

Read 2 more answers

Roll one fair, six-sided die, numbered 1 through 6. Let A be the event you will roll an even number. Let B be the event you will

11111nata11111 [884]

Answer:

a) not independent

b) not mutually exclusive

Step-by-step explanation:

Given:

- A 6 sided die is rolled

- Event A is rolling an even number

- Event B is rolling a prime number

Find

- (a) Are A and B independent events?

- (b) Are A and B mutually exclusive events?

Solution:

- We will find the probability of each event:

set(Even number: A) = {2, 4, 6} = 3 outcomes

set(Prime number: B) = {2 , 3, 5} = 3 outcomes

- The probabilities are:

P(A) = 3/6 = 0.5

P(B) = 3/6 = 0.5

- For Event A and B to be independent then the following condition must match:

P ( A & B ) = P(A)*P(B)

set (A&B) = {2} = 1 outcome

P(A&B) = 1/6

1 / 6 = 0.5*0.5

1/6 = 0.25 ...... NOT INDEPENDENT

- For Event A and B to be mutually exclusive then the following condition must match:

P(A&B) = 0

P(A&B) = 1/6

Hence, we can say the events are NOT MUTUALLY EXCLUSIVE

7 0

3 years ago

Greg deposited $4000 into an account with 4.6% interest, compounded semiannually. Assuming that no withdrawals are made, how muc

Zinaida [17]

The amount in account after 7 years is $ 5499.445

Solution:

The formula for total amount in compound interest is given as:

$A = p(1+\frac{r}{n})^{nt}$

A = the future value of the investment/loan, including interest

P = the principal investment amount (the initial deposit or loan amount)

r = the annual interest rate (decimal)

n = the number of times that interest is compounded per unit t

t = the time the money is invested or borrowed for

Here given that,

A = ?

P = 4000

t = 7 years

$r = 4.6 \% = \frac{4.6}{100} = 0.046$

n = 2 ( since compounded semi annually)

Substituting the values in formula, we get

$A = 4000(1+\frac{0.046}{2})^{2 \times 7}\\\\Simplify\ the\ above\ expression\\\\A = 4000(1+0.023)^{14}\\\\A = 4000(1.023)^{14}\\\\A = 4000 \times 1.37486\\\\A = 5499.445$

Thus amount in account after 7 years is $ 5499.445

4 0

3 years ago

Five-sevenths minus four-sixths

bekas [8.4K]

5/7-4/6
take the least common multiple of six and seven
which is 42
5*whatever multiple of 7 that gives you 42
5*6=30
plus
4* whatever multiple of six that gives you 42
4*7=28
subtract 28 from 42
your answer 14

8 0

3 years ago

Read 2 more answers

Pls help being timed

Airida [17]

50 miles / 4 hours = 12.5 miles per hour

Answer: 12.5

7 0

3 years ago