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3 years ago

Select the correct answer.

Mathematics

2 answers:

Novay_Z [31]3 years ago

6 0

Answer:

0.03

Step-by-step explanation:

siniylev [52]3 years ago

6 0

Answer:

.03

Step-by-step explanation:

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May u please help me ill give out the brainly

Eddi Din [679]

Answer:

The answer is B.

Step-by-step explanation:

In order to solve this problem, you need to combine like terms, which in this case, are the x's. So, if you add the numbers with the x's together, you get 3x + 12y. The 12y remains untouched because there are no other terms with the same variable.

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3 years ago

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4 years ago

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How do i solve the question in the image provided ?

Mars2501 [29]

Answer:

0.19+0.46i and 0.19-0.46i

Step-by-step explanation:

$\neq (-b+\sqrt{b^2-4ac} )/2a\\and\\(-b-\sqrt{b^2-4ac} )/2a\\\\a=8\\b=3\\c=2\\(-3+\sqrt{3^2-4*8*2} )/(2*8)\\= - 0.1875+0.463512i\\(-3-\sqrt{3^2-4*8*2} )/(2*8) = -0.1875-0.463512i$

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3 years ago

Simplify using the Laws of Exponents<br> not hard :]<br> but i cant do it XD

pav-90 [236]

Answer:

j11

Step-by-step explanation:

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3 years ago

An apple IPod sells for 299, which is marked up 40% of the selling price. What is the cost of the iPod ?

Shalnov [3]

Answer:

$\large \boxed{213.57}$

Step-by-step explanation:

Let x = cost of IPod

$\begin{array}{rcl}\text{Price} & = & \text{Cost + Markup}\\299 & = & x + 0.40x\\& = & x(1 + 0.40)\\& = & 1.40x\\x & = & \dfrac{299}{1.40}\\\\& = & \mathbf{213.57}\\\end{array}\\\text{The cost of the IPod is $\large \boxed{\mathbf{213.57}}$}$

Check:

$\begin{array}{rcl}299 & = & x + 0.40x\\299 & = & 213.57 + 0.40 \times 213.57\\299 & = & 213.57 + 85.43\\299 & = & 299.00\\\end{array}$

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4 years ago