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True [87]
3 years ago
9

Which property is illustrated by the equation 3 (m n) = (3 m) n? HELP ME PLZ I NEED THIS THANK YOU

Mathematics
1 answer:
GaryK [48]3 years ago
3 0

Answer:

Associative properties of multiplication

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Factor completely 4x2 − 8x + 4.
olga nikolaevna [1]

<u>Given </u><u>:</u><u>-</u><u> </u>

  • 4x² - 8x - 4 .

<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u><u> </u>

  • To find the factorised form .

<u>Answer</u><u> </u><u>:</u><u>-</u><u> </u>

Taking the given expression,

→ 4x² - 8x + 4

→ 4x² - 4x -4x + 4

→ 4x ( x - 1 ) -4( x -1)

→ (4x - 4)(x-1)

<u>Hence </u><u>the</u><u> </u><u>required</u><u> answer</u><u> is</u><u> </u><u>(</u><u>4</u><u>x</u><u> </u><u>-</u><u> </u><u>4</u><u>)</u><u>(</u><u> </u><u>x </u><u>-</u><u> </u><u>1</u><u>)</u><u> </u><u>.</u>

4 0
3 years ago
What is 220% of 400? A. 88 B. 880 C. 8,800 D. 88,000
Andrews [41]

Answer:

The correct answer is B. 880

Step-by-step explanation:

220%=2.2

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7 0
3 years ago
Read 2 more answers
Lee worked a total of 30 hours at two jobs last week her combined pay from the jobs was $240 she earned $9 per hour working at t
Sonja [21]

Answer:she spent 10 hours working in her aunt's store last week.

Step-by-step explanation:

Let x represent the number of hours that Lee spent working at the movie theater.

Let y represent the number of hours that Lee spent working at her aunt's store.

Lee worked a total of 30 hours at the movie theater and her aunt's store. This means that

x + y = 30

Her combined pay from the jobs was $240. She earned $9 per hour working at the movie theater and $6 per hour working in her aunt's store. This means that

9x + 6y = 240 - - - - - - - - - -1

Substituting x = 30 - y into equation 1, it becomes

9(30 - y) + 6y = 240

270 - 9y + 6y = 240

- 9y + 6y = 240 - 270

- 3y = - 30

y = - 30/ - 3 = 10 hours

3 0
3 years ago
Can someone help me with number 6 pls. I will give brainly.
aalyn [17]

Answer:

The answer is... x = 7 I used an app called Cymath is goes down step by step to help.

Step-by-step explanation:

I hope I helped you! :)

3 0
3 years ago
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Enter the number in sdentific notation. 86,257 = Hint: Move the decimal left 4 places.​
marin [14]

Answer:

8.6257*10^4

Step-by-step explanation:

move the decimal left 4 places

multiply 10^however many decimal places you moved

boom

6 0
3 years ago
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