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olga2289 [7]
2 years ago
13

Help me with this pls​

Mathematics
1 answer:
Anton [14]2 years ago
5 0

\tt 4:2\dfrac{2}{3}=x:4\\\\4:\dfrac{8}{3}=x:4\\\\x=16:\dfrac{8}{3}=6

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Does any one know how to do this. It would be such a life saver if you could help me out. Thx
Aneli [31]

Answer:

1: (3 ,- 4)

2:up (a > o)

3: -4

4: 2 units to the right

5: 4 units down

6: y = (x-2)^2-4

7:

8:

9: (5,9)

10: x=5

11: (4,7) and (6,7)

12:

Step-by-step explanation:

I'm not sure if you wanted it explained or answered , so i just answered most of them. Sorry if you wanted it explained.

3 0
3 years ago
A sample is selected from a population with μ = 46, and a treatment is administered to the sample. After treatment, the sample m
Georgia [21]

Answer:

0.5

Step-by-step explanation:

Solution:-

- The sample mean before treatment, μ1 = 46  

- The sample mean  after treatment, μ2 = 48

- The sample standard deviation σ = √16 = 4

- For the independent samples T-test, Cohen's d is determined by calculating the mean difference between your two groups, and then dividing the result by the pooled standard deviation.

                           Cohen's d = \frac{u2 - u1}{sd_p_o_o_l_e_d}

- Where, the pooled standard deviation (sd_pooled) is calculated using the formula:

                          sd_p_o_o_l_e_d =\sqrt{\frac{SD_1^2 +SD_2^2}{2} }

- Assuming that population standard deviation and sample standard deviation are same:

                          SD_1 = SD_2 =  σ = 4

- Then,

                           sd_p_o_o_l_e_d =\sqrt{\frac{4^2 +4^2}{2} } = 4

- The cohen's d can now be evaliated:

                          Cohen's d = \frac{48 - 46}{4} = 0.5

6 0
3 years ago
Derek bought a package of 8 tennis balls. The total weight of the tennis balls was 18 ounces. How much did each tennis ball weig
beks73 [17]
2.25 ounces...18/8=2.25

7 0
3 years ago
(Ill give brainliest if ya help me :D)
Sergio039 [100]

Answer:

A) The area of the flower bed is larger than 8 square feet

Step-by-step explanation:

This is the answer, hope it helps!

4 0
3 years ago
How many molds in a square base in 28 centimeters
slega [8]
7×4=28 square bases in all the centimeters
4 0
3 years ago
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