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Kruka [31]
3 years ago
13

Divide a 6 and 3/4 inch line into three parts so that each part is 1/4 inch shorter than the one before it.

Mathematics
1 answer:
Stells [14]3 years ago
4 0

Answer:

Hey there!

x+x+1/4+x+2/4

3x+0.75=6.75

3x=6

x=2

The lines are 2, 2 1/4, and 2 2/4.

Let me know if this helps :)

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A large population of variable x is characterized by its known mean value of 6.1 units and a standard deviation of 1.0 units and
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Answer:

-6.134 to +6.134

Step-by-step explanation:

given that a large population of variable x is characterized by its known mean value of 6.1 units and a standard deviation of 1.0 units and a normal distribution

X is Normal with mean  =6.1 and std dev = 1 unit

We are to determine the range of values containing 70% of the population of x

We know that normal distribution curve is bell shaped symmetrical about the mean.

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Hence corresponding x value is

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i.e. 70% values lie between

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3 0
3 years ago
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PIT_PIT [208]

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{\tt{ x =  \frac{ - 5±\sqrt{{5}^{2}  - 4 \times 1 \times ( - 3)} }{2 \times 1} }}

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{\tt{x =  \frac{ - 5 ±\sqrt{37}  }{2} }}

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8 0
2 years ago
Find b, given that a = 20, angle A = 30°, and angle B = 45° in triangle ABC
Kamila [148]
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20* \frac{ \sqrt{2} }{2}  = b* \frac{1}{2}
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6 0
3 years ago
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Which expression is equivalent to V-80?<br> -45<br> -4.5i<br> 4.5i<br> 4.5
Anuta_ua [19.1K]

Answer:

-4.5i

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8 0
2 years ago
Help Plss <br>How many solutions do y=5-2x and 4x+2y = 10 have?​
tia_tia [17]

y=2x+5

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