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Anna71 [15]
3 years ago
9

Need help right now Not really but please

Mathematics
2 answers:
Dafna1 [17]3 years ago
6 0

Mean is when you take all the numbers and add them together and divide by the amount of numbers there

Example: Find the mean of :3,4,6,7

So you a 3+4+6+7=20 divide that by 4(because there you added 4 numbers) and that equals 5

Fudgin [204]3 years ago
6 0

Your first picture would be 148.8

For the second picture could you retake it. It says there are four bicycles and it looks like the table graph has more bikes and costs but I can't see it, so could you scroll it down, so I could see the graph please.

For the third picture it would be 15

You find the mean by adding up all the numbers and dividing your sum by all the amount of numbers they give you

For example, the third one.

It says find the mean of 2, 6, 8, 10, and 49

That means to add all those together, which is 75

Then, you would divide 75 by 5 because they give you 5 numbers

Those 5 numbers are 2, 6, 8, 10 and 49

75/5= 15

Hope this helps :)

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Alenkinab [10]

Answer: 818.4

Step-by-step explanation:

Using the area of a sector formula, we get the area of the entire sector is (\pi)(27.8^{2})\left(\frac{150}{360} \right).

Using the formula A=\frac{1}{2} ab \sin C, we get the area of the triangle is \frac{1}{2}(27.8)(27.8)(\sin 150^{\circ}).

So, the area of the shaded sector is (\pi)(27.8^{2})\left(\frac{150}{360} \right)-\frac{1}{2}(27.8)(27.8)(\sin 150^{\circ}) \approx \boxed{818.4}

6 0
2 years ago
PLS PLS HELP!!!! Write and solve an inequality to find the possible values or x if the area of the
Wittaler [7]

Answer:

width=2 ft, length=(3x+4)ft

Area of Rectangle=width x length

                             =2ft . (3x+4)ft

                             =6x+8 ft sq

Area of Rectangle <56 ft sq

6x+8 ft sq <56 ft sq

6x  < 56 ft sq - 8 ft sq

6x <  48 ft sq                       Substeracting  8  on both sides

6x/6 < 48 ft sq/6                 Dividing by    6 on both sides  

x < 8 ft sq

Step-by-step explanation:

6 0
2 years ago
It takes you 47 seconds to walk from the first​ (ground) floor of a building to the third floor.
Musya8 [376]

Answer: 117.5 seconds

Step-by-step explanation:

Given : It takes you 47 seconds to walk from the first​ (ground) floor of a building to the third floor.

Since from first floor to third , a person need to pass two levels of staircase.

We assume that the person walk at the same​ pace and the height of all floors are same.

The time taken to pass each level = (Time taken to pass 2 levels) ÷ 2

= (47 seconds)  ÷ (2) = 23.5 seconds

Also, the from first floor to sixth floor , a person need to pass 5 levels of staircase.

Then, the time taken to pass each level = 5 x (Time taken to pass one level)

= 5 x 23.5 =117.5 seconds

Hence, it will take 117.5 seconds to walk from the first floor to the sixth floor.

4 0
3 years ago
A bicycle pedal is pushed straight downwards by a foot with a 11 Newton force. The shaft of the pedal is 20 cm long. If the shaf
galben [10]

Answer: 1.1 Nm

Step-by-step explanation:

The formula for torque is T = r · F · sin θ

where θ = π/6, r = 20 cm = 0.2 m, F = 11 N

formula for converting radians to degrees is 1 rad × 180/π = 57.296°

θ = π/6 · 180/π = 30°

Substituting r into the formula for torque, we have

T = 0.2 x 11 x sin 30° = 0.2 x 11 x 0.5

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3 0
3 years ago
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sergiy2304 [10]

Answer:

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Step-by-step explanation:

Given :

Total number of coins = 17

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Number of dimes = 17 - N

1 nickel = 5 cent = $0.05

1 dime = 10 cent = $0.1

The amount of money :

(Value of nickel * number of nickels) + (value of dime * number of dime)

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0.05N + 1.7 - 0.1N

0.05N - 0.1N + 1.7

-0.05N + 1.7 = 1.7 - 0.05N

4 0
3 years ago
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