3 years ago

What is the reasoning for this statement?

Mathematics

1 answer:

Dahasolnce [82]3 years ago

4 0

Answer:

there is a black photo

Step-by-step explanation:

make sure to check properly

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A shop owner offerad a 20% discount off the regular price of a mirror. The amount of the discount is 3$ what is the regular pric

Troyanec [42]

Answer:

$15

Step-by-step explanation:

$3 correspond is the 20% discount of the total price.

If the total price is x then you can express the discount as:

0.20x = 3

x = 3/0.20

x = 15

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3 years ago

Hi, can someone please help, and possibly explain the answer please.

mr_godi [17]

Answer:

$x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

Step-by-step explanation:

Quadratic formula: $x=\frac{-b\±\sqrt{b^2-4ac} }{2a}$ when the equation is $0=ax^2+bx+c$

The given equation is $1=-2x+3x^2+1$ . Let's first arrange this so its format looks like $y=ax^2+bx+c$ :

$1=-2x+3x^2+1$

$1=3x^2-2x+1$

Subtract 1 from both sides of the equation

$1-1=3x^2-2x+1-1\\0=3x^2-2x+0$

Now, we can easily identify 3 as a, -2 as b and 0 as c. Plug these into the quadratic formula:

$x=\frac{-b\±\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

I hope this helps!

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2 years ago

How to put 1+0.9+0.08+0.001 in word form

Svet_ta [14]

1.981: One and nine hundred eighty-one thousandths

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3 years ago

Mustafa contributes 11% of his $67,200 annual salary to his 401(k) plan. What is his pretax income?

Juli2301 [7.4K]

11% of $67,200.
We need to keep in mind that some words and numbers here aren't important, like 401(k) plan.
So what is 11% of $67,200?

$\frac{11}{100} * $67,200
$

$11*$672$

$7392

Hope this helps!

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3 years ago

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Evaluate the expression 4^3÷(7-3) × 2 PLEASE HURRY AND HELP ME I DONT HAVE MUCH TIME TILL ITS DUE

docker41 [41]

Answer:

The answer is 32.

Step-by-step explanation:

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2 years ago

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