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3 years ago

Factor 121m^2-198m+81

Mathematics

1 answer:

Pie3 years ago

5 0

<u>1) Rewrite it in the form a^2-2ab+b^2, where a=11m and b=9</u>

(11m)^2-2(11m)(9)+9^2

<u>2) Use Square of Difference: (a-b)^2=a^2-2ab+b^2</u>

(11m-9)^2

<u>Your answer is (11m-9)^2</u>

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Please help me out !!

Dmitrij [34]

<h3>Solution:</h3>

$\huge \pink {\tt {{128}^{ \frac{3}{7} } = \sqrt[7]{ {128}^{3} } = {2}^{3} }}$

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<h2>Answer:</h2>

$\huge \purple {\tt {8 \: is \: the \: answer}}$

8 0

3 years ago

1) Miguel has a gift card to an electronics store. He has $ 150 on the card. He purchased a DVD for $ 20 and some games for $12.

GrogVix [38]

Answer:

9 games

Step-by-step explanation:

If he purchase 1 game, he spent $12.50. If he purchased 2 games, he spent 2(12.50) = $25.

This means he spent 12.5x for x number of games.

His total spending will be 12.5x + 20. He has $17.50 left on the card from $150.

150 - (12.5x + 20) = 17.5

150 - 12.5x -20 = 17.5

130 - 12.5x = 17.5

-12.5x = 17.5 - 130

-12.5x = -112.5

x = 9

8 0

2 years ago

Oliver has 3 times as many rocks in his collection as Katie. Then Oliver collected 75 more rocks and Katie collected 105 more ro

Evgesh-ka [11]

Answer:

The answer to your question is Katie had 15 rocks and Oliver 45 rocks.

Step-by-step explanation:

Conditions

Katie has x amount of rocks

Oliver has 3x amount of rocks

The final amount of rocks

Oliver = 3x + 75

Katie = x + 105

Now, they have the same amount of rocks, then we can equal both equations

3x + 75 = x + 105

Solve for x

3x - x = 105 - 75

2x = 30

x = 30/2

x = 15

Conclusions

At first Katie had 15 rocks and Oliver had 3(15) = 45 rocks

5 0

2 years ago

Read 2 more answers

A circular plate has circumference 21.4 inches. What is the area of this plate? Use 3.14 for pi.

Brut [27]

Answer:

The area of this plate is $36.31\ \text{inches}^2$ .

Step-by-step explanation:

We have,

Circumference of a circular plate, C = 21.4 inches

The circumference of a circular shape is given by :

$C=2\pi r$

r is radius of circular shape

$r=\dfrac{C}{2\pi}\\\\r=\dfrac{21.4}{2\times 3.14}\\\\r=3.4\ \text{inches}$

Area of this plate is given by :

$A=\pi r^2\\\\A=\pi (3.4)^2\\\\A=36.31\ \text{inches}^2$

So, the area of this plate is $36.31\ \text{inches}^2$ .

8 0

3 years ago

I NEED HELP ASAP!!!!!!!!!!!!!!!

bagirrra123 [75]

Answer:

$\tan(j) = \frac{35}{12} = 2 \times \frac{9}{12}$

Step-by-step explanation:

remember: tan(theta) = opposite/adjacent

3 0

2 years ago