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3 years ago

PLEASE!! help, thanks (: 1.Write 5,081,000,000 in scientific notation.

Mathematics

1 answer:

Jobisdone [24]3 years ago

6 0

I think it would be 5,081 X 10 to the 6th power

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PLEASe HELP ASAP!!!! Christine found a sweater at Nordstrom that was priced at $72.00. She noticed there was a sign that said "A

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3 years ago

X/9 > 9 is the question and the answer is 81 but Iḿ not sure how my teacher got the answer 81

Oliga [24]

Answer:

$81 < x$

Step-by-step explanation:

$\frac{x}{9} > 9 → x > 9 \times 9 → x > 81$

* The above answer is written in reverse, which is the exact same result.

I am joyous to assist you anytime.

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3 years ago

Solve the following quadratic by<br> completing the square.<br> y = x^2 - 6x+7

kozerog [31]

Answer:

$x= 3+\sqrt{2}, \quad x= 3 -\sqrt{2}$

Step-by-step explanation:

<u>Given quadratic equation</u>:

$y = x^2 - 6x+7$

To complete the square, begin by adding and subtracting the square of half the coefficient of the term in x:

$\implies y = x^2 - 6x+\left(\dfrac{-6}{2}\right)^2-\left(\dfrac{-6}{2}\right)^2+7$

$\implies y = x^2 - 6x+\left(-3\right)^2-\left(-3\right)^2+7$

$\implies y = x^2 - 6x+9-9+7$

Factor the perfect square trinomial:

$\implies y=(x-3)^2-9+7$

$\implies y=(x-3)^2-2$

To solve the quadratic, set it to zero and solve for x:

$\implies (x-3)^2-2=0$

$\implies (x-3)^2-2+2=0+2$

$\implies (x-3)^2=2$

$\implies \sqrt{(x-3)^2}=\sqrt{2}$

$\implies x-3= \pm\sqrt{2}$

$\implies x-3+3= 3\pm\sqrt{2}$

$\implies x= 3\pm\sqrt{2}$

Therefore, the solution to the given quadratic equation is:

$x= 3+\sqrt{2}, \quad x= 3 -\sqrt{2}$

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1 year ago

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3 years ago

What is 6/24 in lowest terms(I’m reporting wrong answers)

almond37 [142]

The greatest common factor of 6 and 24 is 6.

Divide the numerator and denominator by 6.

6/24 = (6/6) / (24/6) = 1/4

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2 years ago

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