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2 years ago

11

Write the equation of the line in point-slope form y - y1 = m ( x - x1). From the two given points ( -2, 5 ) and ( 3, -1 ). (hin

t: find m and the point)

1 answer:

IgorC [24]2 years ago

5 0

Answer:

y-5=-6/5(x+2)

Step-by-step explanation:

m=(5+1)/(-2-3)

m=6/-5

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a contractor bought a rectangular piece of land that has a perimeter of 200 feet. the ration of the land's length to width is 9:

PIT_PIT [208]

Answer:

length/width = 1/1 = 1

Step-by-step explanation:

(3x)(2x) = 12150

6x^2 = 12150

x^2 = 2025

x = 45

Length is 135 ft, width is 90 ft, perimeter is 450 ft

Geometric mean: 135 : x :: x : 90

x^2 = 12150

x = 45√6

The second rectangular piece of land is a square !

length/width = 1/1 = 1

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2 years ago

lab scale known to have a standard deviation of 0.001gram, speimen weghtted 8 times. average weiht is 4.1602 gram. what is 99% c

gtnhenbr [62]

Answer:

$99\% CI=4.1602 \pm 0.0009$

Step-by-step explanation:

From the question we are told that:

Sample size $n=8$

Mean $\=x=4.1602$

Standard deviation $\sigma=0.001gram$

Generally 99\% confidence from table is mathematically given by

$99\% CI=4.1602 \pm *2.576*\frac{0.001}{\sqrt{{8}}}$

$P(-z$

$Z_{\alpha/2}=2.576$

Generally the equation for 99\% confidence level (CI) is mathematically given by

$99\% CI=\=x \pm Z_{\alpha/2*\frac{\sigma}{\sqrt{{n}}}$

$99\% CI=4.1602 \pm 0.0009$

5 0

2 years ago

PLEASE HELP!! ASAP

Semenov [28]

Answer:

easy the answer is b

Step-by-step explanation:

the reason that is, is becuase I said so and I have a graphing calculator chow....

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2 years ago

Click on the median in this set of data. 15,21,25,63,8

nadya68 [22]

Answer:

<em>the median is 21</em>

Step-by-step explanation:

<em>8 , 15 , 21 , 25 , 63 </em>

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2 years ago

Max drove 203 miles in 3.5 hours. What was his average speed in miles per hour?

NeTakaya

Answer:

59.4 mph

Step-by-step explanation:

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3 years ago