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3 years ago

Please help!! show work(factoring) u^4 - 3u^2 - 4

Mathematics

1 answer:

Schach [20]3 years ago

5 0

Answer: (u^2+1) * (u-2) * (u+2)

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Evaluate if m= -6 and n= -2 (2m divided by n) please help!!11!!

NISA [10]

$\frac{2m}{n}$
you put in -6 for m and -2 for n
$\frac{2( - 6)}{ - 2}$
the 2/2 =1 but one is negative so it's -1
$- 1( - 6)$
negative times a negative is a positive
$6$

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4 years ago

Combine the terms -3m+7m PLS HELp

saveliy_v [14]

Answer:

Step-by-step explanation:

To combine like terms is to say to add the same variables numbers.

-3m + 7m

Answer: 4m

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4 years ago

A special variety of wallpaper covers only 60 square feet per roll. How many single rolls are needed to paper a room measuring 1

Ganezh [65]

Answer:

9 rolls

Step-by-step explanation:

The perimeter of the room measures 2(19' +12') = 62', so the area of the walls is ...

(62 ft)(8.5 ft) = 527 ft²

We know that 8 rolls will cover 8×60 ft² = 480 ft², and 9 rolls will cover 540 ft², so we will need 9 rolls to cover the walls.

7 0

3 years ago

PLEASE HELP !! ILL GIVE BRAINLIEST !!

Morgarella [4.7K]

Answer:

2&7

6&3

Definition:

angles located at opposite positions between the two lines that are intersected by a transversal.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the value of x? Enter your answer in the box. x =___

Zanzabum

Answer:

x = 12

Step-by-step explanation:

The diagram shows an equilateral triangle (because all angles are congruent). All sides in equilateral triangle are congruent, so

$4x-10=5x-22=3x+2$

Solve the equation

$4x-10=5x-22\\ \\4x-10-4x=5x-22-4x\\ \\-10=x-22\\ \\-10+22=x-22+22\\ \\12=x$

Check this value:

$4x-10=4\cdot 12-10=48-10=38\ units \\ \\5x-22=5\cdot 12-22=60-22=38\ units\\ \\3x+2=3\cdot 12+2=36+2=38\ units$

Thus, $x=12$

8 0

3 years ago