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2 years ago

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An item is regularly priced at $85. it is on sale for 60% off the regular price. How much ( in dollars) is discounted from the r

egular price?

1 answer:

MaRussiya [10]2 years ago

5 0

hvhAnswer:

gfhh

Step-by-step explanation:

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The real numbers $x$ and $y$ are such that \begin{align*} x + y &= 4, \\ x^2 + y^2 &= 22, \\ x^4 &= y^4 - 176 \sqrt{

tamaranim1 [39]

You get everything you need from factoring the last expression:

$x^4-y^4=-176\sqrt7$

The left side is a difference of squares, and we get another difference of squares upon factoring. We end up with

$x^4-y^4=(x^2-y^2)(x^2+y^2)=(x-y)(x+y)(x^2+y^2)$

Plug in everything you know and solve for $x-y$ :

$-176\sqrt7=(x-y)\cdot4\cdot22\implies x-y=\boxed{-2\sqrt7}$

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3 years ago

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Tell whether -2 is a solution of the inequality n-5<8

ruslelena [56]

Answer:

-2 is a solution

Step-by-step explanation:

-2-5<8

-7<8

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2 years ago

The cost to manufacture x number of chairs can be represented by the function C(x)=36x . In th

bogdanovich [222]

<span>C(x)=2268 means that the cost of </span><span>manufacture 63 chairs is 2268$.

2268/36 = 63 chairs
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Use the graph below to find the coordinates of J'after J(-5, 1) was reflected over the linex=-3.

k0ka [10]

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Step-by-step explanation:

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