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lara31 [8.8K]
2 years ago
13

The weights of 1,000 men in a certain town follow a normal distribution with a mean of 150 pounds and a standard deviation of 15

pounds.
Mathematics
1 answer:
galina1969 [7]2 years ago
7 0
Im not really sure but 45 sir :)
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Which equation correctly applies the law of cosines to solve for an unknown angle measure?
Harman [31]
The law of cosines is:
c² = a² + b² - 2abCos(C)
Therefore, in order to apply this law, we must know the value of two adjacent sides, represented by a and b here, and the value of their subtended angle, represented by C. 
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2 years ago
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A surveyor measures a road as being 69.3km long, however there is a 1℅ error in this measurement .What is the true length of the
Vaselesa [24]

Answer:

69.993

Step-by-step explanation:

Using the percentage error formula:

Percentage error = (true - measured value / true measurement ) * 100%

1% error in measurement

1% of 69.3

0.01 * 69.3 = 0.693

True measurement = error in measurement + measured value

True measurement = 0.693 + 69.3

Actual measurement = 69.993

Hence, actual measurement = 69.993.

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1 year ago
[GEOMETRY] If m∠DEG= 5x - 4 m∠GEF=7x - 8 m∠DEH= 9y + 5 find the values of x and y
IgorLugansk [536]

we are given

DEF is a line

so, sum of angles must be 180

angle(DEG)+angle(GEF)=180

now, we can plug values

5x-4+7x-8=180

12x-12=180

12x=192

x=16.........Answer

vertically opposite angle must be equal

angle(GEF)=angle(DEH)

now, we can plug values

9y+5=7x-8

now, we can plug x=16

9y+5=7*16-8

9y+5=104

9y=99

y=11...................Answer


9 0
2 years ago
Regression analysis was applied between sales data (in $1000s) and advertising data (in $100s), and the following information wa
Romashka-Z-Leto [24]

Answer:

$66,000

Step-by-step explanation:

The F statistic = 45

The t statistic = 6.709

8 0
2 years ago
A video game store allows customers to rent games for $4.75 each. Customers can also buy a membership for $54 annually, and vide
snow_tiger [21]

Answer:

54+2.50x=4.75x

x=24 video games

Step-by-step explanation:

54+2.50x=4.75x

54=2.25x

x=24

Check answer:

54+2.5(24)=2.25(24)

114=114

6 0
2 years ago
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