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3 years ago

Can anyone help out with this?

Mathematics

1 answer:

galina1969 [7]3 years ago

6 0

9514 1404 393

Answer:

(x, f(x)) = (1, 6), (2, 11), (3, 18), (4, 27)

Step-by-step explanation:

Each figure consists of two small squares and a square that has a side length of 1 more than the figure number. That is, ...

f(x) = (x +1)^2 +2

You can count the squares in figures 1-3. Figure 4 will be 2 more squares than 5^2 = 25, so will be 27 squares.

(x, f(x)) = (1, 6), (2, 11), (3, 18), (4, 27)

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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

Hi could you please help? Write 2.96 as a mixed number or fraction in simplest form. My family is trying to help me but we're ba

klemol [59]

as a fraction it would be 74 over 25 in one way there might be other ways

3 0

3 years ago

Read 2 more answers

Aaron has 16 blue pens and 12 red pens.

Maslowich

Answer:

Step-by-step explanation:

16÷4=4 12÷3=4 meaning is.the lowest common multiple

7 0

2 years ago

Find the surface area of a solid cylinder with radius 2m and length 6m ( famula)π=3.14

Softa [21]

Answer:

100.544m

Step-by-step explanation:

Surface area of a cylinder = 2pie x rh + 2pie x r² where pie = 3.142

Therefore, (2x3.142x2x6) + (2x3.142x2²) =100.544m

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3 years ago

A roller coaster climbs 180 feet above ground level then drops 60 feet .How far above ground level is the roller coaster?

RideAnS [48]

Answer:

120 deet above ground level

Step-by-step explanation:

180 - 60 = 120

7 0

3 years ago