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2 years ago

Find the distance between the points (8,-3) and (2, -3).

Mathematics

1 answer:

vladimir2022 [97]2 years ago

8 0

Because the Y values are the same ( -3) the distance is the difference between the x values:

Distance = 8-2 = 6

The answer is 6

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PLEASE HELP WILL GIVE BRAINLIEST

LUCKY_DIMON [66]

Answer:

A. slope = -2; point = (8, -3)

Step-by-step explanation:

Compare to the point-slope form for slope m and point (h, k).

y -k = m(x -h)

You see that k = -3, m = -2, h = 8, so ...

the slope is -2
the point is (h, k) = (8, -3)

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2 years ago

What is 172 over 96.75 simplified?

Katyanochek1 [597]

$\frac{172}{96.75}=172:96.75=172:96\frac{3}{4}=172:\frac{387}{4}=172\cdot\frac{4}{387}=4\cdot\frac{4}{9}=\frac{16}{9}=1\frac{7}{9}$

$\frac{172}{96.75}=\frac{17200}{9675}=\frac{16}{9}=1\frac{7}{9}$

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3 years ago

Read 2 more answers

A physicist examines 25 water samples for nitrate concentration. The mean nitrate concentration for the sample data is 0.165 cc/

xz_007 [3.2K]

Answer:

The 80% confidence interval for the the population mean nitrate concentration is (0.144, 0.186).

Critical value t=1.318

Step-by-step explanation:

We have to calculate a 80% confidence interval for the mean.

The population standard deviation is not known, so we have to estimate it from the sample standard deviation and use a t-students distribution to calculate the critical value.

The sample mean is M=0.165.

The sample size is N=25.

When σ is not known, s divided by the square root of N is used as an estimate of σM:

$s_M=\dfrac{s}{\sqrt{N}}=\dfrac{0.078}{\sqrt{25}}=\dfrac{0.078}{5}=0.016$

The degrees of freedom for this sample size are:

$df=n-1=25-1=24$

The t-value for a 80% confidence interval and 24 degrees of freedom is t=1.318.

The margin of error (MOE) can be calculated as:

$MOE=t\cdot s_M=1.318 \cdot 0.016=0.021$

Then, the lower and upper bounds of the confidence interval are:

$LL=M-t \cdot s_M = 0.165-0.021=0.144\\\\UL=M+t \cdot s_M = 0.165+0.021=0.186$

The 80% confidence interval for the population mean nitrate concentration is (0.144, 0.186).

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3 years ago

Se mezclan alcohol 54% con alcohol de 90 y agua en la proporcion de 6,6 y "n" .hallar "n" sabien que mezclam es del mismo grado

EleoNora [17]

Is there a way you can do this in English like write it in English?

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2 years ago

A bag contains 3 red marbles, 4 blue marbles, and 6 green marbles. Which pair of events are complementary events? A) choosing a

kotykmax [81]

Answer:

Event D

Step-by-step explanation:

Complementary events are those events that are opposites of each other. i.e. in this case the complementary event for choosing a green marble is not choosing a green. It has nothing to do with choosing or not choosing marbles of colors other than green.

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3 years ago

Find the distance between the points (8,-3) and (2, -3).​

Find the distance between the points (8,-3) and (2, -3).