1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paha777 [63]
3 years ago
12

A commercial aircraft gets the best fuel efficiency if it operates at a minimum altitude of 29,000 feet and a maximum altitude o

f 41,000 feet. Model the most fuel-efficient altitudes using a compound inequality.
x ≥ 29,000 and x ≤ 41,000
x ≤ 29,000 and x ≥ 41,000
x ≥ 41,000 and x ≥ 29,000
x ≤ 41,000 and x ≤ 29,000
Mathematics
1 answer:
Cloud [144]3 years ago
7 0

Answer:

x\geq 29,000  and  x\leq 41,000

Step-by-step explanation:

Let

x -----> the altitude of a commercial aircraft

we know that

The expression " A minimum altitude of 29,000 feet" is equal to

x\geq 29,000

All real numbers greater than or equal to 29,000 ft

The expression " A maximum altitude of 41,000 feet" is equal to

x\leq 41,000

All real numbers less than or equal to 41,000 ft

therefore

The compound inequality is equal to

x\geq 29,000  and  x\leq 41,000

All real numbers greater than or equal to 29,000 ft and less than or equal to 41,000 ft

The solution is the interval ------> [29,000,41,000]

You might be interested in
Simplify, 99/121 whats the GCF?
Nadya [2.5K]

To find the GCF:

-- List the factors of the first number.
-- List the factors of the second number.
-- Make a short list of the factors that show up for BOTH numbers.
-- Find the biggest number on the short list.

Factors of the first number (99):  <u>1</u>, 3, 9, <u>11</u>, 33, 99 .

Factors of the second number (121):  <u>1</u>, <u>11</u>, 121 .

Short list (factors that show up for both numbers):  1, 11

Biggest number on the short list:  <em>11</em>


3 0
3 years ago
Please answer this
pentagon [3]

Answer:

14 in^3.

Step-by-step explanation:

The volume = volume of the bottom prism + volume of the top pyramid

= area of base * height of the prism + 1/3 * area of base * height of the pyramid

= 2 * 1.5 * 4 + 1/3 * (2*1.5) * 2

= 3*4 + 1/3 * 6

= 14 in^3.

6 0
3 years ago
Suppose that the function fis defined on the interval (-2,2) as follows. <br>​find f(-1) f(0.5) f(1)
frosja888 [35]

Answer:

Step-by-step explanation:

Hello,

-1 <= -1 < 0

so f(-1)=-1

0 <= 0.5 < 1

so f(0.5)=0

1 <= 1 < 2

so f(1)=1

Thank you.

8 0
3 years ago
Find the value of x in the triangle shown below: 2.5 6.5 Choose 1 answer: I =6 3 = V48.5 x = 9 x = V9
Andreyy89

Answer:

<u>x = 6 units</u>

Step-by-step explanation:

We know that, By pythagoras theorem,

Hypotenuse2 = base2 + perpendicular2

Given, Hypotenuse = 6.5

perpendicular = 2.5

base = x

So, by putting the values,

6.52 = 2.52 + x2

42.25 = 6.25 + x2

36 = x2  

Hence, <u>x = 6 units</u>

4 0
1 year ago
Some questions I have on a test that I need ASAP...
Svetllana [295]
1. 13
2. 20
3. 4
4. 40
5. 4
6. 4
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following represents the series in summation notation?
    8·2 answers
  • What is the surface area of the cube? 42 mm² 49 mm² 294 mm² 1764 mm² https://static.k12.com/nextgen_media/assets/243723-VHS_PA_S
    13·1 answer
  • How do I do math expressions?
    13·1 answer
  • The formula for the area of a trapezoid is A=h(b1+b2). Express b1 in terms of A, h, and b2.
    6·2 answers
  • Find a quadratic equation that models the decline in physical recorded music revenue​ (not digital). Let x=number of years since
    6·1 answer
  • Can someone help me with this plz
    9·2 answers
  • Use the GCF to factor this expression.<br><br> 40x + 24y – 56
    14·2 answers
  • For a company picnic, Jill ordered a box of fresh-baked gingerbread cookies and sugar cookies. The box included a total of 70 co
    9·2 answers
  • Astore pays $927.40 for a water heater and marks the price up by 5%. What is the new price?
    10·1 answer
  • Which ordered pair makes both inequalities true? y &gt; –2x + 3 y &lt; x – 2 On a coordinate plane, 2 straight lines are shown.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!