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Sever21 [200]
4 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]4 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]4 years ago
5 0
One-fourth of a number

1/4n and n/4
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Step-by-step explanation:

The curvature of the curve y=f(x) is

y=f(x)=x^2\\\\y'=f'(x)=2x\\\\y''=f''(x)=2\\\\K(x)=courbure(in\  French)=\Bigg|\dfrac{y''(x)}{(1+y'(x)^2)^{\dfrac{3}{2} } }\Bigg|\\\\At\ A=(1,1),\\K(1)=\Bigg|\dfrac{2}{(1+2^2)^{\dfrac{3}{2} } }\Bigg|\\\\=\Bigg|\dfrac{2}{(5)^{\dfrac{3}{2} } }\Bigg|\\\\=\Bigg|\dfrac{2}{5*\sqrt{5} }\Bigg|\\\\=\Bigg|\dfrac{2*\sqrt{5}}{25 }\Bigg|\\\\\\\boxed{=\dfrac{2*\sqrt{5}}{25 }}\\\\

6 0
3 years ago
Select the correct answer. Consider functions f and g.
vlabodo [156]
C) 1 b =-2. D) 7 f(-2) = 3(-8) - 2. -5 x=6
y. 4(y + 1) = x. If (x, y) is the solution to
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5 0
2 years ago
Caps hock Guess and Check (or use Algebra) to solve #3 & # 4 3. Plato has 36 coins in nickels, dimes, and quarters. The numb
Sedaia [141]

Answer:

Part 1:

Let the nickels be = n

Let the dimes be = d

Let the quarters be = q

Plato has 36 coins in nickels, dimes, and quarters. So, equation forms:

n+d+q=36    .....(1)

The number of nickels is three less than twice the number of dimes.

n=2d-3    ....(2)

The total value of the coins is $5.20.

0.10d+0.05n+0.25q=5.20   .... (3)

Substituting n=2d-3 in (1) and (3)

2d-3+d+q=36

=> 3d+q=39    ....(4)

0.10d+0.05(2d-3)+0.25q=5.20

=> 0.10d+0.10d-0.15+0.25q=5.20

=> 0.20d+0.25q=5.35    ...(5)

Multiplying (4) by 0.25 and subtracting (5) from (4)

0.75d+0.25q=9.75 now subtracting (5) from this we get;

0.55d=4.4

=> d = 8

Substituting d = 8 in 3d+q=39

3(8)+q=39

24+q=39

=> q = 15

Substituting values of d and q in n+d+q=36, we get n

n+8+15=36

n=36-23

=> n = 13

Therefore Plato has 13 nickels, 15 quarters and 8 dimes.

-----------------------------------------------------------------------------------------

Part 2:

Let the original price of the ski hat be = x

Original price was marked down by 35% means value was lowered by 35%.

So, we can calculate as:

x-\frac{35x}{100}=15.60

=> \frac{65x}{100}=15.60

=> 65x=1560

x = 24

Hence, the original price was $24 but after 35% marking down, it was available for $15.60.

5 0
3 years ago
2 PART QUESTION!!
Llana [10]
Last answer for the first question and in not sure about the second one
4 0
3 years ago
What is sinB?<br><br><br>a. 15/17<br><br>b. 8/17<br><br>c. 8/15<br><br>d. 15/8
Mkey [24]

Answer:

\sf sin(B)= \dfrac{8}{17}

Explanation:

\hookrightarrow \sf sin(x)= \dfrac{opposite}{hypotensue}

<u>using the formula:</u>

\sf sin(B)= \dfrac{8}{17}

8 0
2 years ago
Read 2 more answers
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