A) To get the output, subtract 7 from the

50 POINTS!! HELP!

Minchanka [31]

i dont have time to do all of it (sorry)

but this is how you do the point and slope questions:

use the equation: y-y1 = m(x - x1)

y1 is the y point you are given

x1 is the x point you are given

m is your slope

substitute all of those in from the question

the first one is:

y --4 = -5/6(x-8)

-- turns into a plus so the answer would be

y+4 = -5/6(x-8)

6 0

3 years ago

Lulu tells her little brother, Jack, that she is holding 20 coins, all of which are either dimes or quarters. They have a value

RSB [31]

Given :

Lulu tells her little brother, Jack, that she is holding 20 coins, all of which are either dimes or quarters.

They have a value of $4.10. She says she will give him the coins if he can tell her how many of each she is holding.

To Find :

How many dimes and quarters in Lulu holding?

Solution :

4.10 dollar = 410 cents

Let, number of dimes and quarter are x and y.

So, x + y = 20 ...1)

Also, 10x + 25y = 410 ...2)

Putting value of 1) in equation 2), we get :

10x + 25( 20 - x ) = 410

10x + 500 - 25x = 410

15x = 90

x = 6

y = 14

Therefore, number of dimes and quarters are 6 and 14 respectively.

Hence, this is the required solution.

3 0

3 years ago

The Brooklyn District Attorney's office analyzed the leading (leftmost) digits of check amounts in order to identify fraud. The

iragen [17]

Answer:

The expected number of checks among 784 that should have a leading digit of "1" is 236.

Step-by-step explanation:

Let X = number of checks that has the leading digit as "1".

The probability of a check having a leading digit as "1" is, p = 0.301.

The number of checks issued by a suspected company is, n = 784.

A check is having a leading digit "1" is independent of other checks.

A randomly selected check either has the leading digit 1 or not.

The success of the experiment is defined as, a check having the digit "1" as the leading digit.

The random variable X follows a Binomial distribution with parameters n = 784 and p = 0.301.

The expected value of a random variable is the average number of times the random variable occurs.

The formula to compute the expected value of a Binomial distribution is:

$E(X)=n\times p$

Compute the expected value of X as follows:

$E(X)=n\times p\\$

$=784\times 0.301\\=235.984\\\approx236$

Thus, the expected number of checks among 784 that should have a leading digit of "1" is 236.

7 0

4 years ago

Using the Distance Formula and the Pythagorean Theorem, find the distance, to the nearest tenth, from F

Fantom [35]

Answer:

Step-by-step explanation:

$d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\\\\(3,2)\quad\implies\quad x_1=3\,,\ \ y_1=2\\\\(-5,-2)\quad\implies\quad x_2=-5\,,\ \ y_2=-2\\\\d=\sqrt{(3+5)^2+(2+2)^2}=\sqrt{8^2+4^2}=\sqrt{64+16}=\sqrt{80}\approx8.9$

8 0

3 years ago

Express -2(x - y) -10 = 0 in standard form.

goldenfox [79]

Answer:

2x - 2y = - 10

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Given

- 2(x - y) - 10 = 0 ← distribute parenthesis on left side

- 2x + 2y - 10 = 0 ( add 10 to both sides )

- 2x + 2y = 10 ( multiply through by - 1 )

2x - 2y = - 10 ← in standard form

8 0

3 years ago