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AnnZ [28]
2 years ago
7

Solve each system of equations algebraically x-y=6 y=-1

Mathematics
2 answers:
Masteriza [31]2 years ago
7 0

Answer:

Therefore, the solution of the system of equations will be:

x=5,\:y=-1

Step-by-step explanation:

Given the system of equations

x-y=6;\:y=-1

solving

\begin{bmatrix}x-y=6\\ y=-1\end{bmatrix}

\mathrm{Subsititute\:}y=-1

\begin{bmatrix}x-\left(-1\right)=6\end{bmatrix}

\begin{bmatrix}x+1=6\end{bmatrix}

Isolate x for x+1=6

x+1=6

x=5

Therefore, the solution of the system of equations will be:

x=5,\:y=-1

kati45 [8]2 years ago
3 0

Answer:

x-(-1)=6

-x=6

-x/-1 6/-1

x=-6

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3 years ago
Assume that the weight of two year old babies have distribution that is approximately normal with a mean of 29 pounds and a stan
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Answer:

25.15 ponds is the weight of two year old baby corresponds to 10th percentile.      

Step-by-step explanation:

We are given the following information in the question:

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Standard Deviation, σ = 3 pounds

We are given that the distribution of weight of two year old babies is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

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3 years ago
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A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits. (2 points)
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Step-by-step explanation:

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Amy and Stephanie were playing a number game. Amy picked a number and told Stephanie that if she added 9 to the number and multi
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Answer:

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Step-by-step explanation:

To solve this problem, we proceed as follows:

- We call "x" the number picked up by Amy:

x

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