3 years ago

20 points to answer both a and b

2 answers:

8 0

I only did A sorry I couldn’t figure out B Im not that good at explaining things. Hope you get it right I showed the work in the picture.

Anarel [89]3 years ago

3 0

Answer:

a. mean = - 1,115,000 visitors i believe not sure about b forgot all this

Step-by-step explanation:

do 11,150,000/10

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Levart [38]

Answer:

tens: 9

hundreds: 2

thousands: 5

Step-by-step explanation:

you just look at what number is in each catagory

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3 years ago

Can u express 9 and 9 as a mixed number ? Why or why not ? 9and 9 means fraction

Lostsunrise [7]

Yes:

1 & 0/9
or
1 & 1/1

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3 years ago

A diffraction grating is illuminated with yellow light. The diffraction pattern seen on a viewing screen consists of three yello

Svetradugi [14.3K]

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Step-by-step explanation:

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3 years ago

A rotating light is located 20 feet from a wall. The light completes one rotation every 3 seconds. Find the rate at which the li

ss7ja [257]

Answer:

43.17 ft/s

Step-by-step explanation:

Let the height of the wall is y.

distance of wall from light is 20 feet.

$tan\theta =\frac{y}{20}$

y = 20 tanθ .... (1)

time period, T = 3 second

$\frac{d\theta}{dt}=\frac{2\pi}{3}$

Differentiate equation (1) with respect to t.

$\frac{dy}{dt}=20sec^{2}\theta\times \frac{d\theta}{dt}$

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dy/dt = 20 x 2.16

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4 0

3 years ago

6. they were 300 people at a football match and 35% were adults, the rest were children a. what percentage were children

ioda

Answer: 65%, 195 children

Step-by-step explanation: To get this, we just do 100-35 to get 65 percent. We can calculate this further, and do 300*0.65, and we get 195. Thus, there were 195 children.

4 0

2 years ago

Read 2 more answers