3 years ago

Which system of equations is represented by the matrix below?

Mathematics

2 answers:

Anestetic [448]3 years ago

8 0

Answer:

Step-by-step explanation:

Charra [1.4K]3 years ago

6 0

Answer:

Step-by-step explanation:

The elements of the matrix need to match the coefficients in the equations.

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how many unique triangles can be made where one angle measures 98 degrees and another angle is an obtuse angle

aliya0001 [1]

None because it is impossible for any triangle to have more than one obtuse angle.

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2 years ago

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What are the steps to solve for: 1/5(x+5)=1/4(x-3)+1

andrew11 [14]

Step 1. Simplify $\frac{1}{5} (x+5)$ to $\frac{x+5}{5}$

$\frac{x+5}{5} = \frac{1}{4} (x-3)+1$

Step 2. Simplify $\frac{x+5}{5}$ to $1+ \frac{x}{5}$

$1+ \frac{x}{5} = \frac{1}{4} (x-3)+1$

Step 3. Simplify $\frac{1}{4} (x-3)$ to $\frac{x-3}{4}$

$1+ \frac{x}{5} = \frac{x-3}{4} +1$

Step 4. Cancel $1$ on both sides

$\frac{x}{5} = \frac{x-3}{4}$

Step 5. Multiply both sides by $20$ (the LCM of $5,4$ )

$4x=5(x-3)$

Step 6. Expand

$4x=5x-15$

Step 7. Subtract $5x$ from both sides

$4x-5x=-15$

Step 8. Simplify $4x-5x$ to $-x$

$-x=-15$

Step 9. Multiply both sides by $-1$

$x=15$

Done! :) Hope this helps! :)

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3 years ago

Can someone help me x^2 + 3 - 6(3x + 4) i will give brainliest

dangina [55]

Answer:

${x}^{2} - 18x - 21$