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3 years ago

What does "brainliest" award do, like what does it do for me why do people say it I don't understand lol

2 answers:

5 0

It’s just the point system if people answer questions they get 5 points and if you ask a question you lose 10 points it’s just about points

serious [3.7K]3 years ago

4 0

I'm pretty sure "Brainliest" is just a mark for the person who answered the question with more of an explanation/understanding rather than just saying the answer. (It also rewards the person more points)

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What is the 3 digit number of the ones period in 288,322,170

AnnZ [28]

Answer:

170

The ones period consists of the ones, tens, and hundreds digits.

6 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

Kayla flips a quarter 200 times. She expects that

ehidna [41]

Answer:

Experimental probability is likely to be slightly different from theoretical probability.

Step-by-step explanation:

This is because there is a 50-50 chance, but it is unlikely to be exactly 100-100. That is just to hypothesis!

7 0

3 years ago

Find the range of the function.<br><br> f(x) = (x + 5)2 + 8

Marizza181 [45]

Finding the vertex of the parabola
<span>y = (x + 5)^2 + 8 the vertex is at (-5, 8)
its coefficient so the parabola turns upward so the range is [8 , inf]</span>

6 0

3 years ago

Make a table of 4 additional speeds equivalent to 50 miles per hour.

Nostrana [21]

Answer:

80.4672kmh

22.352m/s

43.4488 knots

73.3333 fps

Step-by-step explanation:

8 0

3 years ago

What does "brainliest" award do, like what does it do for me why do people say it I don't understand lol ​

What does "brainliest" award do, like what does it do for me why do people say it I don't understand lol