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Arte-miy333 [17]
3 years ago
7

The angles of elevation to an airplane from two points A and B on level ground are 58° and 76°, respectively. The points A and B

are 2.1 miles apart, and the airplane is east of both points in the same vertical plane. Find the altitude of the plane. (Round your answer to two decimal places.)
Mathematics
1 answer:
statuscvo [17]3 years ago
6 0

Answer:

90

Step-by-step explanation:

45x2=90

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LM is the midsegment of ABC is AC is 28 centimeters long , how long is LM?
mamaluj [8]

Answer:

LM = 14

Step-by-step explanation:

LM = AC/2

LM = 28/2

<u>LM = 14</u>

Hope this helps!

4 0
3 years ago
Lunch break: In a recent survey of 655 working Americans ages 25-34, the average weekly amount spent on lunch was $43.5
Inga [223]

Using the Empirical Rule, it is found that:

  • a) Approximately 99.7% of the amounts are between $35.26 and $51.88.
  • b) Approximately 95% of the amounts are between $38.03 and $49.11.
  • c) Approximately 68% of the amounts fall between $40.73 and $46.27.

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

The Empirical Rule states that, in a <em>bell-shaped </em>distribution:

  • Approximately 68% of the measures are within 1 standard deviation of the mean.
  • Approximately 95% of the measures are within 2 standard deviations of the mean.
  • Approximately 99.7% of the measures are within 3 standard deviations of the mean.

-----------

Item a:

43.5 - 3(2.77) = 35.26

43.5 + 3(2.77) = 51.88

Within <em>3 standard deviations of the mean</em>, thus, approximately 99.7%.

-----------

Item b:

43.5 - 2(2.77) = 38.03

43.5 + 2(2.77) = 49.11

Within 2<em> standard deviations of the mean</em>, thus, approximately 95%.

-----------

Item c:

  • 68% is within 1 standard deviation of the mean, so:

43.5 - 2.77 = 40.73

43.5 + 2.77 = 46.27

Approximately 68% of the amounts fall between $40.73 and $46.27.

A similar problem is given at brainly.com/question/15967965

8 0
3 years ago
Read 2 more answers
. You work at a department store and make $9 per hour plus 12% commission
Luda [366]
Start with hours worked 6 x $9 = 54
Then commission $700 x 0.12 (12% converted to a decimal) = $84
Add up 54 + 84 = $138 total income

So answers are A, the first C (you make $84 in commission), and the last one, you make $138 in total.
5 0
3 years ago
What is a circumference?
Fantom [35]
The enclosing boundary of a curved geometric figure, especially a circle.
7 0
3 years ago
Read 2 more answers
The height of a cone is 10 inches and the radius of the cone is 4 inches. What is the approximate volume golf the cone?
KonstantinChe [14]

Answer:

V = 167.55 inches^3

Step-by-step explanation:

v =  \frac{1}{3} \pi {r}^{2}  \times h \\ v =  \frac{1}{3} (3.14) \times ( {4})^{2}  \times (10) \\ v = 167.55 \: \:  \:   {inches}^{3}

I hope that is useful for :)

7 0
3 years ago
Read 2 more answers
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