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3 years ago

Find the y-intercept for the line represented by this equation.

Mathematics

1 answer:

sashaice [31]3 years ago

5 0

Answer:

A) (0,0)

Step-by-step explanation:

1.) graph the equation, 3x+2y = x+y

2.) the line intersects (0,0) on the coordinate plane

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Which expression represents the products of a and b decresed by 9?

Dmitriy789 [7]

Answer:

(a × b) - 9

Step-by-step explanation:

The product of a and b basically just means a being multiplied by b and then decreased by 9 just means to subtract that by 9.

I hope this helps you :D

8 0

3 years ago

5x-4y-6z = -3<br> X-3y+z=-1<br> -3x-6y+7z=1

PilotLPTM [1.2K]

Answer:

$x=-\frac{41}{55},y=\frac{2}{55},z=-\frac{8}{55}$

Step-by-step explanation:

$5x-4y-6z=-3...............eq(1)\\\\x-3y+z=-1.....................eq(2)\\\\-3x-6y+7z=1.................eq(3)$

$eq(1)-5\times eq(2)$

$5x-4y-6z-5(x-3y+z)=-3-5\times (-1)\\\\11y-11z=2\\\\y-z=\frac{2}{11}...................eq(4)$

$3\times eq(2)+eq(3)$

$3(x-3y+z)-3x-6y+7z=3\times (-1)+1\\\\-15y+10z=-2\\\\-y+\frac{2}{3}z=-\frac{2}{15}.........eq(5)$

$eq(4)+eq(5)$

$y-z-y+\frac{2}{3}z=\frac{2}{11}-\frac{2}{15}\\\\-\frac{1}{3}z=\frac{8}{165}\\\\z=-\frac{8\times 3}{165}\\\\z=-\frac{8}{55}$

From $eq(4)$

$y=z+\frac{2}{11}=-\frac{8}{55}+\frac{2}{11}\\\\y=\frac{2}{55}$

Substitute the value of $y$ and $z$ in $eq(2)$

$x-3\times \frac{2}{55}-\frac{8}{55}=-1\\\\x-\frac{14}{55}=-1\\\\x=-1+\frac{14}{55}\\\\x=\frac{41}{55}$

6 0

4 years ago

Your family needs a set of 4 tires. Which of the following deals would you prefer? Complete the explanation below to tell which

aivan3 [116]

I will answer the question although it may take a minute.

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3 years ago

What is 40% of 95 ?

yulyashka [42]

Answer:

135

Step-by-step explanation:

180- 45= 135

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3 years ago

Read 2 more answers

Line f is parallel to line g. Which statement about lines f and g is true?

kolezko [41]

Answer:

Line F and line G have the same slope.

Step-by-step explanation:

8 0

3 years ago