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Alika [10]
3 years ago
5

Jessica used Fraction 2 over 3 yard of fabric to make a scarf. Can she make 2 of these scarves with Fraction 1 and 3 over 4 yard

s of fabric, and why?
points: 8
Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
8 0
2/3 yard of fabric = 2 feet of this fabric = which is used to make 1 scarf

1 3/4 yards = ?

1 yard = 3 feet = 36 inches 

3/4 of 36

36 /4 = 9 

9 * 3 = 27 

36 + 27 = 63 

63 inches of fabric would mean that she can 2 scarves as 2 scarves would use 48 inches or 4 feet as 1 scarf uses 2 feet. She will also have 15 inches of extra fabric.
aleksandrvk [35]3 years ago
5 0
Yes,

2/3 + 2/3 = 4/3 = 1 1/3

1 1/3 < 1 3/4
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The lengths of nails produced in a factory are normally distributed with a mean of 4.84 centimeters and a standard deviation of
Helga [31]

Answer:

Top 3%: 4.934 cm

Bottom 3%: 4.746 cm

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 4.84, \sigma = 0.05

Top 3%

Value of Z when Z has a pvalue of 1 - 0.03 = 0.97. So X when Z = 1.88.

Z = \frac{X - \mu}{\sigma}

1.88 = \frac{X - 4.84}{0.05}

X - 4.84 = 0.05*1.88

X = 4.934

Bottom 3%

Value of Z when Z has a pvalue of 0.03. So X when Z = -1.88.

Z = \frac{X - \mu}{\sigma}

-1.88 = \frac{X - 4.84}{0.05}

X - 4.84 = 0.05*(-1.88)

X = 4.746

8 0
3 years ago
Each side of a cube is 2 inches long what’s the volume of the cube
Kaylis [27]

Answer:

Step-by-step explanation:

The volume of a cube is s*s*s or s^3 where s = the length of a side (2 in this case).

V = s^3

V = 2^3

V = 2*2*2

V = 8 cu in or 8 in^3

4 0
3 years ago
What is the value of the natural logarithm when x=0.4 is rounded to the nearest hundredth?
PilotLPTM [1.2K]
Hello : 
 ln (0.4) = - 0.92....( <span>rounded to the nearest hundredth )</span>
3 0
3 years ago
Read 2 more answers
How do i solve this in the quadratic formula?
liraira [26]
Firstly mines 2x for 2 side
And combine 1 for 2 side
Result 6x^2+17x+5
So
(3x+1)(2x+5)=0
X=-1/3 or x=-5/2
6 0
3 years ago
Write the first five terms of the sequence defined by the explicit formula an=-4n(n-1)
vladimir2022 [97]

The explicit formula of the sequence is given by a_n = -4n(n-1).

We have to find the first five terms of the sequence.

The first term:

\begin{gathered} a_1=-4\times(1)(1-1) \\ =-4(0) \\ =0 \end{gathered}

The second term:

\begin{gathered} a_2=-4(2)(2-1) \\ =-8(1) \\ =-8 \end{gathered}

The third sum:

\begin{gathered} a_3=-4(3)(3-1) \\ =-12(2) \\ =-24 \end{gathered}

The fourth term:

\begin{gathered} a_4=-4(4)(4-1) \\ =-16(3) \\ =-48 \end{gathered}

The fifth term:

\begin{gathered} a_5=-4(5)(5-1) \\ =-20(4) \\ =-80 \end{gathered}

Thus, option D is correct.

7 0
9 months ago
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