4 years ago

How do you know that substitution give a you the answer to a system of equations

1 answer:

6 0

Solve each system by substitution. Check your solution. Writing How do you know that substitution gives the answer to a system of equations? ... You Would solve the second equationfor y and then substitute back into the first equation.

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In the problem, 2x4 - 3x3 - 6x2 + 11x +8 divided by (x - 2), what is the remainder?

Jet001 [13]

remainder = 14

2 $x^{4}$ - 3 $x^{3}$ - 6x² + 11x + 8

= 2x³ + x² - 4x + 3 + $\frac{14}{x - 2}$

8 0

4 years ago

Rosie is building a wheelchair ramp that is 24 feet long and 2 feet high. She needs to install a vertical support piece 16 feet

valina [46]

Answer:

40ft 480inches

Step-by-step explanation:

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3 years ago

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A rectangle has a length of 4x plus 5 and a width of 8x minus 4. Which expression shows the perimeter of that rectangle? A: 4x +

mezya [45]

Answer: The answer is (D) $24x+2.$

Step-by-step explanation: Given that there is a rectangle, where length of the rectangle is given by

$\ell=4x+5,$

and width of the rectangle is given by

$b=8x-4.$

We are to find the perimeter of the rectangle. To do so, we need to add two times length with two times breadth of the rectangle.

Therefore, perimeter is given by

$p=2\ell+2b=2\times(4x+5)+2\times(8x-1)=8x+10+16x-8=24x+2.$

Thus, the correct option is (D).

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4 years ago

If L = 2m + 8, M = –3(m +1), find L + M

Airida [17]

Step-by-step explanation:

refer the above attachment

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3 years ago

Find the equation of the line that passes through points a and b. <br> Please help.

Fiesta28 [93]

Answer:

y=2x-1

Step-by-step explanation:

Gradient : (7-3) / (4-2) = 2

y=2x+c

substitute one of the points

3=2*2+c

c=-1

y=2x-1

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3 years ago