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3 years ago

Find the missing value using the given information (4,p), (p,-3), m=5/3 Please help!

Mathematics

1 answer:

Margarita [4]3 years ago

4 0

Answer:

(4,2), (1,-3), m=5/3

Step-by-step explanation:

I kinda just used trial and error I guess. Since you find the slope by doing y-y1/x-x1. I did P--3 over 4-p =5/3 and just used logic to see which numbers fit

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The standard deviation of the sampling distribution of the sample mean is $115,000. The population standard deviation was $25,00

Zina [86]

Answer:

0.31084

Step-by-step explanation:

When given a question where by a random sample is chosen for the population, the z score formula used =

z = (x-μ)/Standard error

where x is the raw score

μ is the population mean

Standard error = σ/√n,

σ is the population standard deviation

n = number of samples

For x = $114,000, μ = $115,000, σ = 25,000, n = 100

z = (x-μ)/Standard error

= z = (x-μ)/ σ/√n

z = 114,000 - 115,000/ 25,000/√100

= -1000/25,000/10

= -1000/2500

z = -0.4

Determining the probability value from Z-Table:

P(x = 114000) = P(z = -0.4)

= 0.34458

For x = $116,000, μ = $115,000, σ = 25,000, n = 100

z = (x-μ)/Standard error

= z = (x-μ)/ σ/√n

z = 116,000 - 115,000/ 25,000/√100

= 1000/25,000/10

= 1000/2500

= 0.4

Determining the Probability value from Z-Table:

P(x = 116000) = P(z = 0.4)

= 0.65542

The probability that the sample mean selling price was between $114,000 and $116,000 is calculated as

= P(114,000< x < 116,000)

= P(-Z<x<Z)

= P(-0.4<x< 0.4

= 0.65542 - 0.34458

= 0.31084

Therefore, the probability that the sample mean selling price was between $114,000 and $116,000 is 0.31084

5 0

3 years ago

HELP PLEASE! which expressions are equivalent to square root 1,120y^3

Anon25 [30]

Answer:

the answer would be 2 * 2 * y √2 * 5* 7 * y

Step-by-step explanation:

7 0

3 years ago

An=−2+32(n−1) What is the 21st term of the sequence?

OLEGan [10]

Answer:

a₂₁ = 638

Step-by-step explanation:

substitute n = 21 into the explicit formula

a₂₁ = - 2 + 32(21 - 1) = - 2 + 32(20) = - 2 + 640 = 638

5 0

2 years ago

Jill walked 6 blocks. This was 25% of her walk. How far was Jill's walk? A. 14 blocks B. 30 blocks C. 12 blocks D. 24 blocks

Gnoma [55]

6 is a quarter of her walk ... there are 4 quarters in a whole (6x4) = 24

4 0

4 years ago

Read 2 more answers

What is the value of x? Enter your answer in the box.

Grace [21]

The shapes are similar.
When two figures are similar, the ratios of the lengths of their corresponding sides are equal.
Therefore,
$\frac{42}{(15 + 42)} = \frac{x}{10 + x}$

Simplify:
$\frac{42}{57} = \frac{x}{10 + x}$
Cross multiply:
42(10+x) = 57x
420 + 42x = 57x
420 = 57x - 42x
420 = 15x
x = (420÷15)
x = 28

3 0

3 years ago