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3 years ago

10

You buy rice at $0.71 a pound. One batch of fried rice requires 2 pounds of rice. How much does the rice for one batch cost? Rou

nd to the nearest cent.

1 answer:

Flauer [41]3 years ago

4 0

Answer:

$1.42

Step-by-step explanation:

$0.71*2=$1.42

herp derp

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Which algebraic expression represents “the quotient of 7 and number”?

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The correct option would be
A)7/n

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Help&EXPLAIN <br><br> Don’t use for points or I’ll take it back and report

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Answer:

Step-by-step explanation:

The sum of angles in a triangle is 180 degrees. So the third angle in the triangle is

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2 years ago

Find the partial fraction decomposition of the rational expression with prime quadratic factors in the denominator

SpyIntel [72]

$\dfrac{5x^4-7x^3-12x^2+6x+21}{(x-3)(x^2-2)^2}=\dfrac{a_1}{x-3}+\dfrac{a_2x+a_3}{x^2-2}+\dfrac{a_4x+a_5}{(x^2-2)^2}$
$\implies 5x^4-7x^3-12x^2+6x+21=a_1(x^2-2)^2+(a_2x+a_3)(x-3)(x^2-2)+(a_4x+a_5)(x-3)$

When $x=3$ , you're left with

$147=49a_1\implies a_1=\dfrac{147}{49}=3$

When $x=\sqrt2$ or $x=-\sqrt2$ , you're left with

$\begin{cases}17-8\sqrt2=(\sqrt2a_4+a_5)(\sqrt2-3)&\text{for }x=\sqrt2\\17+8\sqrt2=(-\sqrt2a_4+a_5)(-\sqrt2-3)\end{cases}\implies\begin{cases}-5+\sqrt2=\sqrt2a_4+a_5\\-5-\sqrt2=-\sqrt2a_4+a_5\end{cases}$

Adding the two equations together gives $-10=2a_5$ , or $a_5=-5$ . Subtracting them gives $2\sqrt2=2\sqrt2a_4$ , $a_4=1$ .

Now, you have

$5x^4-7x^3-12x^2+6x+21=3(x^2-2)^2+(a_2x+a_3)(x-3)(x^2-2)+(x-5)(x-3)$
$5x^4-7x^3-12x^2+6x+21=3x^4-11x^2-8x+27+(a_2x+a_3)(x-3)(x^2-2)$
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3 years ago

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coldgirl [10]

Answer:

C. y= 6.18x + 10.9

Step-by-step explanation:

Every game that he plays (x) costs 6.18, for example, if he plays 3 games it would be 6.18 times 3 (games)

Now you have to add your admission, 10.9

To enter he needs to pay the admission ( 10.9 ) and also each game ( x ) he plays ( 6.18 )

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3 years ago