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m_a_m_a [10]
3 years ago
11

Please help. A line passes through the points (6,10) and (4,-2)

Mathematics
1 answer:
mel-nik [20]3 years ago
7 0

y = mx + b  

Where m = slope and b is the y intercept

Let's find the slope = change in y/change in x

m = (4-2)/(-6+2) = 2/-4 = -1/2

Now we have:

y = (-1/2)x + b

Now substitute point (-6,4)

4 = (-1/2)(-6) + b

4 = 3 + b

b = 1

 

So y = (-1/2)x + 1 is the equation.

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g Suppose you wish to perform a hypothesis test for a population mean. Suppose that the population standard deviation is known,
NikAS [45]

Answer:

z-test.

Step-by-step explanation:

We want to perform an hypothesis test for a population mean.

In the case that the <u>standard deviation of the population is known</u> and the population distribution is normal, even if the sample is small, <u>we will use a z-test</u>.

The usual case is to not know the standard deviation of the population, in which case a t-test is adequate instead of a z-test, taking into account the degrees of freedom of the sample.

5 0
3 years ago
Write 0.728 as a percent and as a simplified fraction.
Lisa [10]

Answer:

91 /125

Step-by-step explanation:

8 0
3 years ago
Can someone help me with this i got the question wrong the first time so its not 7.50
Sedaia [141]

Answer: $7.6502

Step-by-step explanation:

Grape cost $1.19 per pound. 3.16 pounds are bought. The total amount paid for grape will be:

= $1.19 × 3.16

= $3.7604

Peaches cost $1.29 per pound. 1.35 pounds are bought. The total amount paid for peaches will be:

= $1.29 × 1.35

= $1.7415

Peers cost $0.99 per pound. 2.17 pounds are bought. The total amount paid for pears will be:

= $0.99 × 2.17

= $2.1483

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4 0
3 years ago
HELP PLEASE..........
serg [7]

Answer:

19.47

Step-by-step explanation:

Use the law of sines.

sin(90)/6 = sin(x)/2

Multiply both sides by 2

2 * sin(90)/6 = sin(x)

Use a calculator

0.33333 = sin(x)

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5 0
2 years ago
Inportant inpotant ;(
kondor19780726 [428]

Answer:

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3 0
2 years ago
Read 2 more answers
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