All categories

3 years ago

Write y = -2x + 1 in standard form

Mathematics

2 answers:

Amiraneli [1.4K]3 years ago

7 0

Answer:

2 x + y = 1

Step-by-step explanation:

ella [17]3 years ago

7 0

Answer:

y = 2x + 1

Step-by-step explanation:

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

You might be interested in

Which phrase describes the variable expression y-12

gayaneshka [121]

The number y, decreased by 12

5 0

3 years ago

Read 2 more answers

What is the answer to 7x-(5x+9)+4

Darina [25.2K]

7x -5x -9 + 4
= 2x - 5

8 0

3 years ago

A major credit card company has determined that customers charge between $100 and $1100 per month. If the monthly amount charged

Alexxx [7]

Answer:

a) $E(X) = \frac{a+b}{2} = \frac{100+1100}{2}=600$

b) First we need to calculate the variance given by this formula:

$Var(X) = \frac{(b-a)^2}{12}= \frac{(1100-100)^2}{12} = 83333.33$

And the deviation would be:

$Sd(X) = \sqrt{83333.33}= 288.675$

c) $P(600 < X< 889) = P(X$

And using the cdf we got:

$P(600 < X< 889)= F(889) -F(600) = \frac{889-100}{1000} -\frac{600-100}{1000}= 0.789- 0.5= 0.289$

d) $P(311 < X< 889)= F(889) -F(311) = \frac{889-100}{1000} -\frac{311-100}{1000}= 0.789- 0.211= 0.578$

Step-by-step explanation:

For this case we define the random variable X who represent the customers charge, and the distribution for X on this case is:

$X \sim Unif (a= 100, b=1100)$

Part a

For this case the average is given by the expected value and we can use the following formula:

$E(X) = \frac{a+b}{2} = \frac{100+1100}{2}=600$

Part b

First we need to calculate the variance given by this formula:

$Var(X) = \frac{(b-a)^2}{12}= \frac{(1100-100)^2}{12} = 83333.33$

And the deviation would be:

$Sd(X) = \sqrt{83333.33}= 288.675$

Part c

For this case we want to find the percent between 600 and 889, so we can use the cumulative distribution function given by:

$F(x) = \frac{X -100}{1100-100}= \frac{x-100}{1000}, 100 \leq X \leq 1100$

And we can find this probability:

$P(600 < X< 889) = P(X$

And using the cdf we got:

$P(600 < X< 889)= F(889) -F(600) = \frac{889-100}{1000} -\frac{600-100}{1000}= 0.789- 0.5= 0.289$

Part d

$P(311 < X< 889) = P(X$

And using the cdf we got:

$P(311 < X< 889)= F(889) -F(311) = \frac{889-100}{1000} -\frac{311-100}{1000}= 0.789- 0.211= 0.578$

6 0

3 years ago

What will the 6% sales tax be on purchases totalling $145.50?

r-ruslan [8.4K]

Simply find 6% of $145.50

That is 6/100 * 145.5

= 0.06 * 145.5. Use a calculator

= 8.73.

Sales tax is $8.73. C.

5 0

4 years ago

What is the value of 5^2 * 5^3 written as a singular expression? How would you show your work to prove that this expression is e

Akimi4 [234]

I am going to send you a friend request and try to help you on message is that okay?!?

3 0

3 years ago

Write y = -2x + 1 in standard form​

Write y = -2x + 1 in standard form