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3 years ago

6

A shopper uses a department-store gift card to pay for 3 sweaters priced at $27 each. What is the change in the value of the gif

t card?

1 answer:

LenKa [72]3 years ago

7 0

Well you multiply 27 by 3 to get 71 dollars

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Maximize the objective function P = 3x + 5y for the given constraints

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The answer is 19 please like and 5 star

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3 years ago

Help me please ;))))

liubo4ka [24]

Answer:

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3 years ago

Select whether the equation has a solution or not.

vredina [299]

Answer: The equation has a solution .

Step-by-step explanation:

Since we have given that

$\sqrt{x+1}=7-2\sqrt{x}$

Squaring on both the sides, we get that,

$x+1=(7-2\sqrt{x})^2\\\\x+1=49+4x-28\sqrt{x}\\\\3x+48-28\sqrt{x}=0$

Let $\sqrt{x}=y\implies x=y^2$

So, our equation becomes,

$3y^2-28y+48=0\\\\y=\dfrac{14}{3}\pm \dfrac{2\sqrt{13}}{3}\\\\\sqrt{x}=\dfrac{14}{3}\pm \dfrac{2\sqrt{13}}{3}\\\\x=(\dfrac{14}{3}\pm \dfrac{2\sqrt{13}}{3})^2$

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mars1129 [50]

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Can someone explain, please?

Elena L [17]

You have to find the square root of 169, then add the square root of 169 by 7

Hope this helped :)

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3 years ago

Read 2 more answers