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bija089 [108]
2 years ago
5

The wool of a vicuna is finer than any other wool. The hair of this animal can be as thin as 0.000006 meters. If the average thi

ckness of human hair is approximately 8.4 × 10-5 meters, what is the difference of the thickness of a human hair and a vicuna hair?
A. 2.4 × 10-5 meters

B. 2.4 × 10-6 meters

C. 7.8 × 10-6 meters

D. 7.8 × 10-5 meters Re
Mathematics
2 answers:
kenny6666 [7]2 years ago
5 0

D.  

7.8 × 10-5 meters

BartSMP [9]2 years ago
3 0

Vicuna hair = 0.000006 meters. = 6 x 10^-6 meters or .6 x 10^-5

8.4 x 10^-5 - .6 x 10^-5 = 7.8 x 10^-5


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Katarina [22]
Prove:

The angle inscribed in a semicircle is a right angle. 

The inscribed angle theorem states that the angle θ, inscribed in a circle is half the measure of the central angle of the circle. So, if the given is a semi-circle, then the inscribed angle is half of 180, therefore, 90 degrees and a right angle.  <span />
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2 years ago
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Liza's cousin Marie bought her a ring for 250 euros in France. Liza wants to pay Marie for it in U.S. dollars. If the foreign ex
EleoNora [17]

Answer:

416.67 dollars

Step-by-step explanation:

the exchange rate between U.S. dollar and euro is given as

Exchange rate = 1:0.6

1 U.S. dollar /1 euro = 0.6

cross-multiplying both side

1 x 1 U.S. dollar = 0.6 x 1 euro

1 U.S. dollar = 0.6 euro

multiplying both side by 10

10 U.S. dollar = 0.6 x 10 euro

10 U.S. dollar = 6 euro

dividing both side by "6"

10 U.S. dollar/6 = 6 euro/6

(10/6) U.S. dollar = 1 euro

1 euro = (10/6) U.S. dollar

the ring was bought for 250 euros , we need to convert 250 euros in dollars.

multiplying both side by 250

250 x 1 euro = (250 x 10/6) U.S. dollar

250 euro = 416.67 U.S. dollar

so liza should pay 416.67 U.S. dollar to marie.

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2 years ago
Pepper jackie used a precision hydrometer to perform an experiment at 2 local restaurants to determine which restaurant uses the
NISA [10]

Answer:

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2 years ago
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Solve the system of equations -4+11y=15 x=2y
kondaur [170]
To solve this I will be using substitution

-4 + 11y = 15
solve for y so

-4 + 11y = 15
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y = 19/11

x = 2(19/11)

19/11 x 2 = 38/11

x = 38/11

x = 38/11
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I hope this helps!
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2 years ago
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A given set of values is found to be a normal distribution with a mean of 140 and a standard deviation of 18.0. Find the value t
Alisiya [41]

Answer:

The value that is greater than 45% of the data values is approximately 137.84.

Step-by-step explanation:

The key is transforming values from this distribution to a z-score range and finding the corresponding value using a z-score table.

We are looking for a value x which attains a critical z-score that corresponds to the (100-45)%=55-th percentile:

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The critical z value (from z-score table, online) is: -0.12, so:

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The value that is greater than 45% of the data values is approximately 137.84.


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2 years ago
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