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Sever21 [200]
3 years ago
11

elaina wrote two correct variable expressions to represent the phrase “one-fourth of a number.” which variable expressions could

elaina have written? select each correct answer. 4 ÷ n n/4 1/4n 4n
Mathematics
2 answers:
liraira [26]3 years ago
6 0

Answer:

The correct options are B) n/4 and C) 1/4n.

Step-by-step explanation:

Consider the provided information.

Elaina wrote two correct variable expressions to represent the phrase “one-fourth of a number.”

Let the number is represented by n.

Thus the one fourth of a number or one fourth of number n can be written as:

\frac{1}{4}n

Or

\frac{n}{4}

Now consider the provided options.

The correct options are B) n/4 and C) 1/4n.

antiseptic1488 [7]3 years ago
5 0
One-fourth of a number

1/4n and n/4
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If f(x) = ||x|| , find f (-1/4)
spin [16.1K]
Anything that is absolute value is just that same number

therefore the answer is 1/4

hope this helps
8 0
3 years ago
Factor 2x2 + 7x + 3. <br> (2x + 2)(x + 1) <br> (2x + 3)(x + 1) (2x + 1)(x + 3)
maks197457 [2]
<h3>Answer:</h3>

(2x + 1)(x + 3)

<h3>Step-by-step explanation:</h3>

It is probably easier to try the answer choices than to try to factor the expression yourself.

(2x + 2)(x + 1) = 2x² +4x +2

(2x + 3)(x + 1) = 2x² +5x +3

(2x + 1)(x + 3) = 2x² +7x +3 . . . . . correct choice

_____

<em>Constructed solution</em>

If you want to factor this yourself, you can look for factors of "ac" that add to give "b". That is, you want factors of 2·3 = 6 that add up to give 7. You don't have to look very far.

... 6 = 1·6 = 2·3 . . . . . . the first factor pair adds to give 7

Now, rewrite the x term using the sum of these numbers.

... 2x² +(1 +6)x +3

... 2x +x +6x +3 . . . . eliminate parentheses

... (2x +x) +(6x +3) . . . . group pairs of terms

... x(2x +1) +3(2x +1) . . . . factor each pair

... (x +3)(2x +1) . . . . . . matches the last selection

6 0
3 years ago
PLEASE HELP!!!!!!!!!!
Montano1993 [528]
X is equal 25 degrees. Line ac goes though the parallel lines. So bcd is x. Cdb is 180-50 equals 130. All angles add to 180. 180-130 equals 2X. So x equals 25.
5 0
2 years ago
The distance between Eagle Lake and Swallow Lake on a map is 9 cm. The scale of the map is 4 cm = 2 km.
Sedbober [7]

Answer:

4½ km

Step-by-step explanation:

2 cm= 1 km

1 cm= ½ km

4cm×2km = 8cm

8 cm (4 km) + 1 cm (½ km) = 9 cm

9 cm/ 4 ½ km

4 0
3 years ago
Plz help I need help
AveGali [126]
<h2><u>Answer</u><u> </u><u>:</u></h2>

x + 23 = -22

x = ?

x = -22 - 23

x = - ( 22 + 23 )

x = -45

x = -45 ✔️

8 0
3 years ago
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