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
lorasvet [3.4K]
2 years ago
9

The elevation of city A is 80 feet below sea level; the elevation of city C is 16 feet below sea level. The elevation of city D

is 1 over 2 of the elevation of city C. Part A: Write an expression to represent the elevation, in feet, of city D. (5 points) Part B: Solve the expression and explain why the answer is negative or positive. (5 points)
Mathematics
2 answers:
Drupady [299]2 years ago
6 0

Answer:

A.The elevation of city D=\frac{1}{2}(-16) feet  

B.The elevation of city D=-8 feet

because it is 8 feet below the sea level therefore, it takes  negative.

Step-by-step explanation:

We are given that

The elevation of city A=-80 feet

The elevation of city C=-16

The elevation of city D=1 over 2 of the city C

A.We have to find an expression to represent the elevation in feet of city D.

The elevation of city D=\frac{1}{2}(-16) feet  

B.We have to solve the expression and explain .

The elevation of city D=\frac{1}{2}\times (-16)=-8 feet

The answer is negative because the elevation is below the sea level.

The sea level is like as origin and the elevation measured on the negative y- axis below the origin means sea level.

So, the elevation of city D is 8 feet below the sea level and taken -8.

Ipatiy [6.2K]2 years ago
5 0
Part A: -16 divided by 1/2 =D
You might be interested in
In how many ways can a committee of five women and four men be formed from a group of seven women and seven men?
vekshin1
Number of combinations of 5 women from 7  = 7C5 =  7*6 / 2 = 21
for men its 7C4  = 7*6*5 / 3*2 =  35

Total number of ways = 21*35  = 735
6 0
3 years ago
Austin's truck has a mass of 2000 kg when traveling at 22.0 m/s, it brakes to a stop in 4.0 s. show that the magnitude of the br
olga2289 [7]
Since F=m•a, you want to show that a = -5.5

5 0
3 years ago
Read 2 more answers
In triangle ABC, m∠A=(6x+9)∘, m∠B=(x−8)∘, and the exterior angle at C is 141∘.
Sphinxa [80]

Answer:

12°

Step-by-step explanation:

Let's start with the easy first.

We know that m∠C is 39° because together ∠C and the exterior angle equal 180°. And 180 - 141 = 39.

Now, we can use this to find the remaining two angles.

180° - 39° = 141°

So, this means that we can set up m∠A + m∠B = 141°.

6x + 9 + x - 8 = 141

7x + 1 = 141

7x = 140

x = 20

Finally, we can plug in for our x value and find m∠B.

m∠B = x - 8

m∠B = 20 - 8

m∠B = 12°

3 0
2 years ago
One plant from the garden is randomly selected. There is a 30% chance that the plant was purchased this year, and there is a 6%
Juliette [100K]
Answer and workings in the attachment below. Also, do me one big favour. Let me know if it's the answer your teacher or text book ends up giving you. That would give me some satisfaction.

Answer: 80%

7 0
3 years ago
Read 2 more answers
PLEASE HELP
Oksi-84 [34.3K]

The answer is D) s/cos55°

3 0
2 years ago
Other questions:
  • Simplify (3/4+1/3)×41/3÷31/4
    14·2 answers
  • Estimate the area under the curve f(x) = x^2 from x = 1 to x = 5 by using four inscribed (under the curve) rectangles. Answer to
    7·1 answer
  • What is the sum of 12 and 34
    5·2 answers
  • Convert each degrees minutes seconds into decimal degrees <br> 351°41’142”
    12·1 answer
  • The mean temperature for the first 4 days in January was 7°C. The mean temperature for the first 5 days in January was 9°C. What
    10·2 answers
  • May someone help? show my work too
    15·1 answer
  • Find mZLNM.<br> M<br> L<br> 1089<br> P<br> N
    9·1 answer
  • The crafting club sold art calendars for a recent fundraiser. The table below lists the number of calendars sold by each member
    14·1 answer
  • Evaluate the given functions at the indicated value and simplify.
    11·1 answer
  • PLEASEE HELP!! I WILL MARK BRAINLIEST!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!