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3 years ago

1) Eduardo has five friends, Alfalfa, Bernie, Corey, Dominik, and Elsa He is going to select two of them to go

1 answer:

7 0

Answer: he can make 3 groups of 2 first group him and Alfalfa second group Bernie and Corey the third group Dominik and Elsa.

Step-by-step explanation:

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What is the solution to the system of equations represented by these two lines?

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2 years ago

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3 years ago

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100 points who ever get this right!!

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Answer:

3. A = (0,-3)

B = (4,-2)

C = (-1,1)

4. A = (0,-6)

B = (4,-5)

C = (-1,-2)

Step-by-step explanation:

3) Reverse coordinates (-3,0), (-2,4), (1,-1) to A=(0,-3), B=(4,-2), C=(-1,1).

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So number four answer is A=(0,-6), B=(4,-5), C=(-1,-2).

I hope this helped you.

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3 years ago

Read 2 more answers

Determine which is the appropriate approach for conducting a hypothesis test. Claim: The mean RDA of sodium is 2400mg. Sample da

pshichka [43]

Answer:

c) use the student t- distribution.

t = 22.23

t= 22.23 > 1.645 at 149 degrees of freedom

Null hypothesis is rejected

Step-by-step explanation:

Step (i):-

Given sample size 'n' =150

The mean RDA of sodium is 2400mg

The mean of the Population 'μ' = 2400mg

Given mean of the sample x⁻ = 3400

The standard deviation of the sample 'S' = 550

Step(ii):-

Null hypothesis :H₀: μ = 2400

Alternative hypothesis : H₁: μ ≠2400

The test of statistic

$t = \frac{x^{-}-mean }{\frac{S}{\sqrt{n} } }$

$t = \frac{3400-2400}{\frac{550}{\sqrt{150} } } = 22.23$

degrees of freedom γ= n-1 = 150 -1 =149

t₀.₉₅ = 1.645

Conclusion:-

t= 22.23 > 1.645 at 149 degrees of freedom

Null hypothesis is rejected

The mean RDA of sodium is not equal to 2400mg

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3 years ago