MATHEMATICS HIGH SCHOOL

Solve for n
3n-2=2n
N=

Answers

Answer 1

Answer:

Answer:

Hey there!

3n-2=2n

n-2=0

n=2

Let me know if this helps :)

Answer 2

Answer: 3n - 2 = 2n

n =?

3n - 2n = 2

n = 2 ✔️

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A line that passes through the point (–1, 3) has a slope of 2. Find another point on the line.

Answers

Hello,

Equation is
y-3=2(x+1)
or
y=2x+5

An other point : if x=0 y= 5 is (0,5)

3. Use the Babylonian method to approximate √19 to the nearest hundredth.

Answers

the square root of 19 is 4.36 when rounded to the nearest hundredth

It took John 12 hours riding his bike to make the round trip to his uncle's. If he averaged 20 mph out and 30 mph back, how long did he travel each way? (Round answer to nearest tenth.)

Answers

I belive it would be 7 hours going and 5 hours coming back

Let d = dist traveled one way
Write a time equation;
time = dist/speed
d/20+d/30 = 12

The steamboat River Queen travels at the rate of 30km/h in still water. If it can travel 45 km up stream in the same amount of time that it takes to go 63 km down stream what is the rate of the current.

Answers

$x-the\ rate\ of\ the\ current\nt-time\n\n \left\{\begin{array}{ccc}(30-x)t=45\n(30+x)t=63\end{array}\right\n \left\{\begin{array}{ccc}t=(45)/(30-x)\nt=(63)/(30+x)\end{array}\right\n\n(45)/(30-x)=(63)/(30+x)\n\ncross\ multiply\n\n63(30-x)=45(30+x)\n1890-63x=1350+45x\n-63x-45x=1350-1890\n-108x=-540\ \ \ \ /:(-108)\nx=5\n\nAnswer:The\ rate\ of\ the\ current\ is\ 5\ km/h.$

How many sides does a triangle have? Quickly!

Answers

Hey there!
A triangle is made up of 3 sides and also has 3 angles. All the angles of a triangle add up to 180.
Thank you! :D

Find the discriminant and the number of real roots for this equation 9x^2+12x+4=0

Answers

The discriminant is 0. As the discriminant is 0 it will have equal roots.

And the real root is -2/3.

What is a Quadratic Equation?

In algebra, a quadratic equation is any equation that can be rearranged in a standard form where x represents an unknown, and a, b, and c represent known numbers, where a ≠ zero.

Conclusion: If a = zero, then the equation is linear, no longer quadratic, as there's no ax^2 term.

9 $x^(2)$ +12x+4=0