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Gala2k [10]
3 years ago
13

Consider the given circle with indicated diameter.

Mathematics
1 answer:
Helga [31]3 years ago
3 0

Answer:

a. C=7π

b. C=14π

c. C=21π

d. C=28π

Step-by-step explanation:

To find the circumference, you need to multiply the diameter (d) by π times i.e. C=πd.

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Which is NOT a line of symmetry?<br> 1<br> 2<br> 3<br> 4<br> 5
Brut [27]

Answer:

Line 3 is the only one that is not a line of symmetry.

4 0
3 years ago
A) If the line 2x + 3y -8=0 is perpendicular to the line kx-6y =9 find k.​
blsea [12.9K]

Answer:

k = 9.

Step-by-step explanation:

2x + 3y -8=0

3y = -2x + 8

y = -2/3 x + 8/3

So the slope of this line is -2/3.

Therefore the slope of a line perpendicular to the above is -1 /-2/3

= 3/2.

kx - 6y = 9

6y = kx - 9

y = k/6x - 3/2

But the slope is 3/2,

So k/6 = 3/2

2k = 18

k = 9.

3 0
3 years ago
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vladimir2022 [97]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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chubhunter [2.5K]

Answer: sara is 60

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3 years ago
A manager at an amusement park wants to know how popular the park's biggest roller coaster is. She counts the number of people w
valkas [14]

Answer: minimum = 0.5

maximum = 9.0

first quartile = 3

median = 5.5

third quartile = 7.5

Step-by-step explanation:

The histogram is shown below and used to obtain the various information

Time (hour) (X)     No of People (F)       FX

0.5                             19                            9.5  -- minimum = 0.5    

1                                20                            20

1.5                              21                             31.5

2                                 22                            44

2.5                              23                            57.5

3                                 24                             72 ----first quartile = 3

3.5                              26                             91

4                                 27                              108

4.5                             28                               126

5                                29                                145

5.5                            30                               165 --median/ inter quartile =5.5

6                               31                                186

6.5                           32                                208

7                               33                                 231

7.5                            34                                255-- third quartile = 7.5

8                               35                                280

8.5                            36                               306        

9                                37                              333 --- maximum = 9

T=85.5                   T = 507                      T=  2666.82     T = TOTAL

mean = sumFX/sumF  =   2666.82/507 = 5.26

Median = middle number = inter quartile =5.5 (507/2 = 253.5 = 254 and  add the frequency from top = 19+20+21+ 22+ 23+ 24+26+ 27+ 28+ 29 =269

and 254  close to 269 that is the frequency is within the range and corresponds to 5.5

first quartile = 1/4 *507 = 126.75 = 127 ( add the frequency from top= 19+20+21+ 22+ 23+ 24= 129 and 127 is close to 129)

third quartile = 3/4 * 507 = 380.25 ( add the frequency from top = 19+20+21+ 22+ 23+ 24+26+ 27+ 28+ 29+ 30+ 31+32+ 33+ 34 = 399 and 380 is close to 399 so the third quartile is 7.5

minimum is the one with lowest frequency = 0.5 at 19

maximum  or mode is the one with highest frequency = 9 at 37

4 0
3 years ago
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