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3 years ago

REPOST PLEASE HELP ME IVE BEEN WORKING FOREVER I CANT FAIL!!!

Mathematics

1 answer:

solniwko [45]3 years ago

5 0

Answer:

Step-by-step explanation:

Part 1: x represents her bank account

Part2: 135-x=y

Part 3: I'm not sure how long she's worked there, but it would look like: 7.85x=y. X representing number of hours

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An expression is shown below (x^4/3)(x^2/3)

Nitella [24]

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3 years ago

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The area of a rectangle is 72 cm square. The length of the rectangle is 6 cm longer than the width. What is the width of the rec

miskamm [114]

The correct option will be : B) 6 cm.

Explanation

Suppose, the width of the rectangle is $x$ cm.

As, the length is 6 cm longer than the width, so the length will be: $(x+6) cm.$

Formula for the Area of rectangle is: $(Length)*(Width)$

Given that, the area of a rectangle is 72 cm²

So....

$x(x+6)=72\\ \\ x^2+6x-72=0\\ \\ (x+12)(x-6)=0$

Using zero-product property, we will get...

$x+12=0\\ x= -12$ (Negative value is ignored as width can't be negative)

and

$x-6=0\\ x=6$

So, the width of the rectangle is 6 cm.

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3 years ago

What is the solution to 1-(2x+4)=-4x+5

faust18 [17]

Solve for x by simplifying both sides of the equation, then isolating the variable.
x = 4

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4 years ago

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Find the quotient of the quantity negative 6 times x to the 2nd power times y to the 8th power plus 12 times x times y to the 3r

olga nikolaevna [1]

[ - 6 * x^2 * y^8 + 12* x * y^3 - 36 * x * y^2 ] / [6*x*y^2] =

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Fynjy0 [20]

Answer:

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Step-by-step explanation:

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