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3 years ago

3.2(s+10)=32 what is s?

Mathematics

2 answers:

Elenna [48]3 years ago

4 0

S = 0 hope this helped :)

Westkost [7]3 years ago

3 0

3.2s+32=32
3.2s=32-32
3.2s=0
S=0

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Solve the system of equations by finding the reduced row echelon form of the augmented matrix. Write the solutions for x and y i

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Answer:

The solutions for the given system of equations are:

$\left \{ {{x=-5} \atop {y=12-4z}} \right.$

Step-by-step explanation:

Given the equation system:

$\left \{ {{3x+y+4z=-3} \atop {-x+y+4z=17}} \right.$

We obtain the following matrix:

$\left[\begin{array}{cccc}3&1&4&-3\\-1&1&4&17\end{array}\right]$

Step 1: Multiply the fisrt row by 1/3.

$\left[\begin{array}{cccc}1&\frac{1}{3} &\frac{4}{3}&-1\\-1&1&4&17\end{array}\right]$

Step 2: Sum the first row and the second row.

$\left[\begin{array}{cccc}1&\frac{1}{3} &\frac{4}{3}&-1\\0&\frac{4}{3} &\frac{16}{3}&16\end{array}\right]$

Step 3: Multiply the second row by 3/4.

$\left[\begin{array}{cccc}1&\frac{1}{3} &\frac{4}{3}&-1\\0&1 &4&12\end{array}\right]$

Step 4: Multiply the second row by -1/3 and sum the the first row.

$\left[\begin{array}{cccc}1&0 &0&-5\\0&1 &4&12\end{array}\right]$

The result of the reduced matrix is:

$\left \{ {{x=-5} \atop {y+4z=12}} \right.$

This is equal to:

$\left \{ {{x=-5} \atop {y=12-4z}} \right.$

These are the solutions for the system of equations in terms of z, where z can be any number.

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What is an equation of the line that passes through the point (-2,-8) and has a slope of 3?

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Answer:

y = 3x - 2

Step-by-step explanation:

Use the point-slope equation since we are given a point that the line passes through and its slope:

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Substitute these values into the equation.

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y + 8 = 3x + 6
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The equation of the line that passes through the point (-2, -8) and has a slope of 3 is y = 3x - 2.

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2 years ago

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Answer:

C because a b and d do not show any similaritys

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Which is the slope of the line that passes through the points (2, 8) and (4, 6)?

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