3 years ago

5. Solve the system of equations. 2x+3y=0 x-2y=-7 1-5y =

Mathematics

1 answer:

ra1l [238]3 years ago

6 0

-9 is the answer to this equation

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liraira [26]

Answer:

The length of a side of the flag is 7.2inches

Step-by-step explanation:

Let length = x

Let hypotenuse = x+3

Using Pythagoras' Theorem:

x^2 + x^2 = (x+3)^2

x^2 + x^2 = x^2 + 6x + 9

2x^2 = x^2 + 6x + 9

×^2 - 6x - 9 = 0

$x = \frac{ - b + - \sqrt{ {b}^{2} - 4ac } }{2a}$

x=[-(-6)+sqrt.(-6)^2-4(1)(-9)]/2(1)

×=[6+sqrt.72]/2

×=7.2inches

×=[-(-6)+sqrt.(-6)^2-4(1)(-9)]/2(1)

x=[6-sqrt.72]/2

×=-1.2(rej)

(PS. sqrt is square root)

(Correct me if i am wrong)

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arsen [322]

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3 years ago

25 POINTS!

ludmilkaskok [199]

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Jada invest $590 in a money market account. Her account pays 7% simple interest. How much interest will Jada earn after 4 years

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Step-by-step explanation:

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2 years ago