3 years ago

Determine the interquartile range for the given data 11, 13, 16, 17, 8, 10, 14, 14, 17, 14

Mathematics

1 answer:

Elanso [62]3 years ago

7 0

Answer:

<em>(IQR) interquartile range: 4.5!</em>

Step-by-step explanation:

8, 10, 11, 13, 14, 14, 14, 16, 17

Median: 14

Lower quartile: 10.5

Upper quartile: 15

Interquartile range: 15 - 10.5 = 4.5

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Use the arc length formula to find the length of the curve y = 4x − 5, −1 ≤ x ≤ 3. Check your answer by noting that the curve is

Reptile [31]

Answer:

$4\sqrt{17}$

Step-by-step explanation:

Let's find the answer by using the arc length formula which is:

$\int\limits^a_b {\sqrt{1+(\frac{dy}{dx})^{2} } } \, dx$

First, let's find dy/dx which is:

y=4x-5

y'=4*(1)-0

y'=4, now let's use the formula:

$\int\limits^3_{-1} {\sqrt{1+4^{2}} } \, dx=\sqrt{17} *(3-(-1))=4\sqrt{17}$

Now, using the distance formula we have:

$d=\sqrt{(x2-x1)^{2} +(y2-y1)^{2} }$

$y(-1)=4*(-1)-5=-9 \\y(3)=4*(3)-5=7$

So we have two points (-1, -9) and (3, 7) so:

$d=\sqrt{(3-(-1))^{2} +(7-(-9))^{2} }=4\sqrt{17}$

Notice both equations gave the same length $4\sqrt{17}$ .

5 0

4 years ago

Alana ate breakfast at a restaurant. The bill came to $79.75. If she left 20% tip, how much was the tip?

Lana71 [14]

$79.75*0.2= 15.95
$79.75-15.95= $63.80
63.80+15.95= $79.75

Answer= $15.95

3 0

3 years ago

Which is the equation of the line that contains the points (-1, -5) and (2,1)

QveST [7]

Answer:

y=2x-3

Step-by-step explanation:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

8 0

3 years ago

Read 2 more answers

Please help!!!! I'll make you Brainliest!! Thanks!!

alexandr1967 [171]

Im thinking it whould be c

6 0

3 years ago

2+1.25f=10-2.75f2+1.25f=10−2.75f solve for f pls

krek1111 [17]

The answer to your question would be 2.

(please give thanks if i am correct)

4 0

3 years ago