2 years ago

What is Y=2x+5 y=3x-1 system by substitution

Mathematics

1 answer:

Bad White [126]2 years ago

3 0

Answer:

x=6 , y=17

Step-by-step explanation

3x-1=2x+5

+1 -2x

x=6

plug in 6 for x to solve y

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2x- 3y=9 5x+3y=12 How would i solve this? I dont understand this and i really need help with it!Also I have to graph the an

dedylja [7]

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3 years ago

Express the area of the triangle shown below in terms of b and θ only.

Paul [167]

Given a right triangle with base, b and height, h with the angle opposide side h as θ.

The area of a triangle is given by
$A= \frac{1}{2} bh$

But,
$\tan\theta= \frac{h}{b} \\ \\ \Rightarrow h=b\tan\theta$

Therefore, the area of the triangle in terms of <span>b and θ only is given by
$A= \frac{1}{2} b(b\tan\theta)= \frac{1}{2} b^2\tan\theta$ </span>