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3 years ago

How to find slope and y intercept

Mathematics

2 answers:

Sergio [31]3 years ago

7 0

Slope is rise over run

svetlana [45]3 years ago

3 0

Once you find slope plug numbers into the equation y=mx+b. m being the slope and x and y being points. then just simply

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Pren recorded this data set, which contains an outlier. 204, 216, 111, 224, 230, 211, 210, 198, 200, 218 What numbers represent

melamori03 [73]

Answer:

The correct option is D.

Step-by-step explanation:

The given data is

204, 216, 111, 224, 230, 211, 210, 198, 200, 218

Arrange the data in ascending order,

111, 198, 200, 204, 210, 211, 216, 218, 224, 230

The range is the difference between maximum value and minimum value.

$Range=\text{upper limit}-\text{lower limit}$

$Range=230-111=119$

Divide the data it two equal parts.

(111, 198, 200, 204, 210), (211, 216, 218, 224, 230)

Now divide the each in two equal parts.

(111, 198), 200, (204, 210), (211, 216), 218, (224, 230)

The mid value of first part is 200 and the mid value of second part is 218.

$\text{lower quartile}=Q_1=200$

$\text{Upper quartile}=Q_3=218$

Therefore option D is correct.

5 0

3 years ago

Read 2 more answers

A rectangle with a length of L and a width of W has a diagonal of 10 inches. Express the perimeter P of the rectangle as a funct

KatRina [158]

<h2>Answer:</h2>

The expression which represents the perimeter P of the rectangle as a function of L is:

$Perimeter=2(L+\sqrt{100-L^2})$

<h2>Step-by-step explanation:</h2>

The length and width of a rectangle are denoted by L and W respectively.

Also the diagonal of a rectangle is: 10 inches.

We know that the diagonal of a rectangle in terms of L and W are given by:

$10=\sqrt{L^2+W^2}$

( Since, the diagonal of a rectangle act as a hypotenuse of the right angled triangle and we use the Pythagorean Theorem )

Hence, we have:

$10^2=L^2+W^2\\\\i.e.\\\\W^2=100-L^2\\\\W=\pm \sqrt{100-L^2}$

But we know that width can't be negative. It has to be greater than 0.

Hence, we have:

$W=\sqrt{100-L^2}$

Now, we know that the Perimeter of a rectangle is given by:

$Perimeter=2(L+W)$

Here we have:

$Perimeter=2(L+\sqrt{100-L^2})$

7 0

3 years ago

On the rectangular coordinate system, what is the shortest distance between points (−4, 3) and (−2, −1)?

pogonyaev

Shortest Distance = $\sqrt{ (-4+2)^{2} + (3+1)^{2} }$
Shortest Distance = $\sqrt{ (-2)^{2} + (4)^{2} }$
Shortest Distance = $\sqrt{20}$
Shortest Distance = $4.47 units$

3 0

3 years ago

Read 2 more answers

Please help! im doing a test right now

GaryK [48]

Answer:

a.) Time = 6 hours

b.) Average Speed = 410 miles per hours

c.) Distance = 196 miles

Step-by-step explanation:

A coach drives 360 miles at a speed of 60 mph.

So,

Time = Distance ÷ Speed

Time = 360 ÷ 60

Time = 6 hours

A plan flies 1640 miles in 4 hours.

So,

Average Speed = Distance ÷ Time

Average Speed = 1640 ÷ 4

Average Speed = 410 miles per hours

A bus drives 3½ hour at an average Speed of 56 mph.

So,

3½ hour = 3.5 hour

Distance = Average Speed × Time

Distance = 56 × 3.5

Distance = 196 miles

<u>-TheUnknownScientist 72</u>

4 0

2 years ago

Please help due in 20 minutes

MissTica

<PTQ=90

In ∆PTQ

Apply Pythagorean theorem

$\\ \tt\hookrightarrow PT^2=PQ^2+QT^2$

$\\ \tt\hookrightarrow PT^2=15.4^2+9.3^2=323.16$

$\\ \tt\hookrightarrow PT=17.9$

In ∆TRQ

$\\ \tt\hookrightarrow tan44.4=\dfrac{QT}{TR}=\dfrac{9.3}{TR}$

$\\ \tt\hookrightarrow 0.9=\dfrac{9.3}{TR}$

$\\ \tt\hookrightarrow TR=\dfrac{9.3}{0.9}=10.3$

PR=PT+TR=10.3+17.9=28.2cm

Now

Area:-

$\\ \tt\hookrightarrow 1/2bh$

$\\ \tt\hookrightarrow 1/2(28.2)(9.3)$

$\\ \tt\hookrightarrow 14.1(9.3)$

$\\ \tt\hookrightarrow 131.13cm^2$

7 0

2 years ago