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3 years ago

Please answer correctly, show all steps you did to solve this problem, and i will mark brainliest to best answer

Mathematics

1 answer:

GalinKa [24]3 years ago

6 0

Answer:

Since the values vary from 0.5 to 4.5, let's take 5 intervals of width 1 unit each

(Lower boundary is included, upper boundary is not)

Average

no. of --------> frequency

movies

_______ __________

0 - 1 --------------> 1

1 - 2 --------------> 5

2 - 3 --------------> 5

3 - 4 --------------> 2

4 - 5 --------------> 1

For frequencies, just count the data values in each interval

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3z+8=20 Answer 4 10 8 13

yan [13]

Answer: z = 4

Step-by-step explanation:

3z = 20 - 8

3z = 12

z = 12/3

z = 4

Hope this helped!

7 0

2 years ago

Sophia has three stickers for every two stickers that Ethan has. If Sophia gives Ethan 16 of her stickers, then Ethan will have

olga_2 [115]

Answer:

Step-by-step explanation:

Let s represent the number of stickers Sophia has. Then the number Ethan has is (2/3)s. The transfer of 16 stickers can be described by the equation ...

(s -16)/(2/3s +16) = 1/2 . . . . . sophia/ethan = 1/2 after the transfer

2s -32 = 2/3s +16 . . . . . . . . .cross multiply

4/3s = 48 . . . . . . . . . . . . . . . add 32-2/3s

s = (48)(3/4) = 36 . . . . . . . . .multiply by 3/4

Together, the total number of stickers held is s +(2/3)s = (5/3)s.

5/3s = (5/3)(36) = 60 . . . . . total of Sophia's and Ethan's stickers

Together, Sophia and Ethan have 60 stickers.

7 0

3 years ago

Please may someone help me with these two questions I'm struggling with above.

34kurt

Answer:

Perimeter = 21 units

Volume = 110 cubic units

Step-by-step explanation:

Let the center of circle be (x,y).

$(x+2)^{2} +(y-7)^{2} = (x)^{2}+(y+2)^{2}$

4x - 18y = - 45

$(x)^{2}+(y+2)^{2}=(x-2)^{2}+(y-2)^{2}$

4x + 8y = 4

x + 2y = 1

Solving these 2 equations,

4 - 26y = -45

y = $\frac{49}{26}$

x = $\frac{-36}{13}$

radius = 3.35

Perimeter = 2 $\pi r$ = 21 units

Volume of cylinder = $\pi r^{2} h$

We have to add the volumes of the cylinders.

Volume of smaller cylinder = $\pi \times 2^{2} \times 2$ = 8 $\pi$

Volume of larger cylinder = 27 $\pi$

Total volume = 35 $\pi$ = 110 cubic feet

5 0

3 years ago

What is the little t in Torricelli’s law

svp [43]

In its simplest form, Torricelli's law states that water in a tank will escape through a (small) hole in the bottom with the same speed that it would attain falling from the same height to the level of the hole. ... velocity, g is the acceleration due to gravity, and h is the height of the fluid in the container. Hope that helps!

4 0

3 years ago

nhập kho 5500 kg nguyên vật liệu A với giá nhập chưa có thế GTGT 10% là 52000đ/kg . đã thanh toán bằng chuyển khoảng

Julli [10]

Answer:

i dont know

Step-by-step explanation:

8 0

3 years ago