3 years ago

Help pls i really need it rn

Mathematics

1 answer:

Setler79 [48]3 years ago

8 0

Answer:

dang-

Step-by-step explanation:

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How to solve this???

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Answer:

you do what it says so 13=x

Step-by-step explanation:

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3 years ago

Plsss look at the picture and answer the questions

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1A 60. B 100. C. 80. 2. 84 / 75 / 77

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Multiply 3/8 x2/5 simplify your answer <br><br> 15/16 isn’t the correct answer

Natasha_Volkova [10]

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4 years ago

A recipe uses 375 g of potatoes and 225 g of lentils.

Butoxors [25]

Answer:

5g Potato : 3g Lentils

5:3

Step-by-step explanation:

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3. 75g : 45g

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3 years ago

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The sample consisted of 50 night students, with a sample mean GPA of 3.02 and a standard deviation of 0.08, and 25 day students,

bulgar [2K]

Answer: The test statistic is t= -0.90.

Step-by-step explanation:

Since we have given that

n₁ = 50

n₂ = 25

$\bar{x_1}=3.02\\\\\bar{x_2}=3.04\\\\\sigma_1=0.08\\\\\sigma_2=0.06$

So, s would be

$s=\sqrt{\dfrac{n_1\sigma_1^2+n_2\sigma_2^2}{n_1+n_2-2}}\\\\s=\sqrt{\dfrac{50\times 0.08^2+25\times 0.06^2}{50+25-2}}\\\\s=0.075$

So, the value of test statistic would be

$t=\dfrac{\bar{x_1}-\bar{x_2}}{s(\dfrac{1}{n_1}+\dfrac{1}{n_2})}\\t=\dfrac{3.02-3.04}{0.074(\dfrac{1}{50}+\dfrac{1}{25})}\\\\t=\dfrac{-0.04}{0.074(0.02+0.04)}\\\\t=\dfrac{-0.04}{0.044}\\\\t=-0.90$

Hence, the test statistic is t= -0.90.

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3 years ago