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3 years ago

Plz help............................

Mathematics

1 answer:

Natasha2012 [34]3 years ago

5 0

1.) Factor 9u^2-12u
$\frac{3u(3u-4)}{3u}$

2.) Cancel any common factors (in bold will be the terms eliminated)
$\frac{3u(3u-4)}{3u}$

Final answer is: 3u-4

Therefore, the answer is C. 3u-4

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Christine sleep form 11pm until 9am what fraction of a day does Christine sleep

Natalija [7]

10/24 = 5/12 = 2.5/6

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3 years ago

Kate decides to replace all the lights in her college apartment with energy saving light bulbs beginning this month. The packagi

svetoff [14.1K]

Kate's bill for this month for one bulb will be $1.8225

Further explanation:

Given

Old Bill for one bulb use = $7.29

Percentage of reduction in bill = 75%

To find the new bill, we have to find the amount of saving that Kate will get by using the energy saver and then the amount will be subtracted from the previous bill of $7.29

So, the new bill will be:

$New\ bill = Old\ bill- (saving)\\New\ Bill= 7.29 - (7.29 * \frac{75}{100})\\= 7.29 - 5.4675\\= 1.8225$

Hence the bill this month will be $1.8225

Keywords: Percentage, discount

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4 years ago

Help me please I just don’t get it ‍♀️

ss7ja [257]

Answer:

$\large\boxed{1.\ the\ slope\ is\ \dfrac{1}{4}}\\\boxed{2.\ y=3x-5}\\\boxed{3.\ (3, 6)}$

Step-by-step explanation:

$\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2.\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_2}\\\\l\ \parallel\ k\iff m_1=m_2\\\\m-slope\\b-y-intercept\to(0,\ b)\\\\1.\\\\y=-4x+1\to m_1=-4\\\\m_2=-\dfrac{1}{-4}=\dfrac{1}{4}$

$2.\\y=3x+2\to m_1=3\\\\m_2=3,\ b=-5\\\\y=3x-5$

$\text{Calculate}\ a\ \text{and}\ b:\\\\a=\dfrac{6-(-9)}{5}=\dfrac{15}{5}=3\\\\b=\dfrac{8-(-2)}{5}=\dfrac{10}{5}=2\\\\\text{Calculate the coordinates of a point:}\\\\x=-9+4a\to x=-9+4(3)=-9+12=3\\\\y=-2+4b\to y=-2+4(2)=-2+8=6$

3 0

3 years ago

A food truck sells tacos for 75¢ apiece. The truck operator earned $240 last night.

kykrilka [37]

Answer:

he sold 320 tacos

Step-by-step explanation:

240÷.75=320

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3 years ago

Problem situation:

stepladder [879]

Answer:

Rewrite so x is on the left side of the inequality.

8 + 4.99x < 20

Move all terms not containing x to the right side of the inequality.

4.99x < 12

Divide each term by 4.99 and simplify.

x < 2.405

The result can be shown in multiple forms.

Inequality Form:

x < 2.405

Interval Notation:

( −∞ , 2.405 )

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers