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
Lostsunrise [7]
3 years ago
13

Cuanto es r2-2r-7=0​

Mathematics
1 answer:
vekshin13 years ago
6 0

Answer:

Step-by-step explanation:

The solution is attached

You might be interested in
X
Fofino [41]

Answer:

100 resident/km

Step-by-step explanation:

In order to find the population density, we have to calculate the area of the township first.

We know that:

L = length = 5 km

W = width = 4 km

So the area of the township is

A=L\cdot W = 5 \cdot 4 = 20 km^2A=L⋅W=5⋅4=20km

2

Now we can find the population density by using

d=\frac{N}{A}d=

A

N

where N is the number of residents, and A is the area.

Substituting N = 2000, we find:

d=\frac{2000}{20}=100 res./km^2d=

20

2000

=100res./km

2

so, 100 residents per kilometer squared

7 0
3 years ago
A square pyramid is shown. 4 m 6 m 6 m What is the surface area of the pyramid?​
gladu [14]
The answer is 18....
3 0
3 years ago
Select all that apply:
avanturin [10]

Answer: (-6,-4) (-2,-2) (-1,0) (2,6)

Step-by-step explanation:

We can see that points (2,0) and (4,1) isn't plotted on the line

3 0
2 years ago
Which of the following is not a pair of similar polygons?
Vlada [557]
All angled are congruent correct answer or at least the way is see wish u luck :)
7 0
3 years ago
Read 2 more answers
5 raised by 2- 5 (68-60)= <br> (with explanation plz)
Arlecino [84]

Step-by-step explanation:

2-5(68-60)=2-5×8=2-40=38

6 0
2 years ago
Other questions:
  • M is the midpoint of YZ. If YM = x + 3, and YZ = 3x -1, find MZ
    6·1 answer
  • If $1,120 is invested at an interest rate of 15% per year and is compounded contonuously, how much will the investment be worth
    11·2 answers
  • 2 Questions:
    9·1 answer
  • The following table shows the number of medals won in the 2008 Olympics for swimming by the top five countries. Country Number o
    10·1 answer
  • Bert already has $50 but needs a total of at least $250 for his holiday. He gets paid $20 per day for delivering papers. What is
    13·1 answer
  • Please help!!!!<br><br>(Division with 2-digit divisors
    8·1 answer
  • Can 46.65 be used for minutes?
    15·2 answers
  • Triangle ABC is rotated clockwise to create triangle A’B’C’. What is the angle rotation?
    11·1 answer
  • The table below represents a proportional relationship.
    12·2 answers
  • Answer the question below.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!