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3 years ago

can sb help me my mom is finna come home from work and i’m not tryna get grounded bc my work isn’t done

Mathematics

2 answers:

BigorU [14]3 years ago

4 0

Answer:

Step-by-step explanation:

the ratio is 4:1 on children to childcare workers not the other way around

kipiarov [429]3 years ago

4 0

The answer is number 4. The ratio is 4 children to one childcare worker.

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Trava [24]

Answer:

Step-by-step explanation:

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3 years ago

F=ma. Solve the equation for a

Nimfa-mama [501]

Answer:

F/m=a

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3 years ago

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.

7 0

3 years ago

A car drives with an average velocity of 20.1 m/s . After some time, it has traveled 34.2 km. How long has the car been travelin

exis [7]

Answer:

time = distance / velocity

time = 34,200 meters / 20.1 meters per second

time = 1,701.4925373134 seconds

time = 28.36 minutes

Step-by-step explanation:

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