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2 years ago

Danielle plotted 3 points from the equation y = 4x on this coordinate grid. She drew a straight line through the points.

1 answer:

5 0

You can find any ordered pair in which the y coordinate is 4 times the x coordinate.

For example, an ordered pair could be (2,8) or (5,20)

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Please help me with this

stira [4]

Answer:

in the intersection region of all the solution in the system.

8 0

2 years ago

Solve for x given the equation x-5+7=11

Alexeev081 [22]

Answer:

Step-by-step explanation:

x-5+7=11

First think of what +7 = 11 then subtract by 5

check :)

7 0

3 years ago

If “x” represents the full price of an item, write an expression to represent the final cost of an item that is 20% off.

zloy xaker [14]

The expression is x -20%

3 0

2 years ago

Suppose a simple random sample of size nequals36 is obtained from a population with mu equals 74 and sigma equals 6. (a) Descri

OlgaM077 [116]

Part a)

The simple random sample of size n=36 is obtained from a population with

$\mu = 74$

and

$\sigma = 6$

The sampling distribution of the sample means has a mean that is equal to mean of the population the sample has been drawn from.

Therefore the sampling distribution has a mean of

$\mu = 74$

The standard error of the means becomes the standard deviation of the sampling distribution.

$\sigma_ { \bar X } = \frac{ \sigma}{ \sqrt{n} } \\ \sigma_ { \bar X } = \frac{ 6}{ \sqrt{36} } = 1$

Part b) We want to find

$P(\bar X \:>\:75.9)$

We need to convert to z-score.

$P(\bar X \:>\:75.9) = P(z \:>\: \frac{75.9 - 74}{1} ) \\ = P(z \:>\: \frac{75.9 - 74}{1} ) \\ = P(z \:>\: 1.9) \\ = 0.0287$

Part c)

We want to find

$P(\bar X \: < \:71.95)$

We convert to z-score and use the normal distribution table to find the corresponding area.

$P(\bar X \: < \:71.95) = P(z \: < \: \frac{71.9 5- 74}{1} ) \\ = P(z \: < \: \frac{71.9 5- 74}{1} ) \\ = P(z \: < \: - 2.05) \\ = 0.0202$

Part d)

We want to find :

$P(73\:$

We convert to z-scores and again use the standard normal distribution table.

$P( \frac{73 - 74}{1} \:< \: z$

5 0

2 years ago

Determine the center of the circle whose equation is (x – 5)2 + (y + 7) = 14

patriot [66]

Answer:58 approximately c

Step-by-step explanation:

8 0

2 years ago