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
Talja [164]
2 years ago
12

Expand and simplify (√10-√2)² Give your answer in the formn b-c√5 where b and c are integers

Mathematics
1 answer:
vesna_86 [32]2 years ago
5 0

Answer:

12-4√5

Step-by-step explanation:

(√10-√2)²

(√10-√2)(√10-√2)

Foil/distribute

10-√20-√20+2

12-2√20

12-2√4*√5

12-2*2√5

12-4√5

You might be interested in
What is the distance between (-7, 4) and (3, -2) on a graph.
kifflom [539]

Answer:

5463782910

Step-by-step explanation:

this is incorrect

6 0
3 years ago
The sum of three numbers is 11 . The sum of twice the first​ number, 5 times the second​ number, and 6 times the third number is
Assoli18 [71]

Answer:

4, 6, 1

Step-by-step explanation:

We can solve this problem using a system of equations:

1) a + b + c = 11

2) 2a + 5b + 6c = 44

3) 4a - b = 10

First, we can substitute the value of b from equation #3 into equation #1:

b = 4a - 10

a + (4a - 10) + c = 11

5a - 10 + c = 11

5a + c = 21

c = 21 - 5a

Now, we can plug the values of b and c into equation #2, as b and c are represented in terms of a:

2a + 5(4a - 10) + 6(21 - 5a) = 44

2a + 20a - 50 + 126 - 30a = 44

-8a + 76 = 44

-8a = -32

a = 4

b = 4a - 10 = 4(4) - 10 = 6

c = 21 - 5a = 21 - 5(4) = 1

4 0
2 years ago
Triangle ABC has coordinates A (0, 1) B (0, 2) and C (3,2). If Triangle ABC is equivalent to triangle EDF, what is the measure o
Elanso [62]

Answer:

  3

Step-by-step explanation:

Segment BC corresponds to segment DF. The length of BC is the distance between coordinates (0, 2) and (3, 2). These points are on the same horizontal line (y=2), so the distance between them is the difference of their x-coordinates: 3 - 0 = 3.

7 0
3 years ago
Read 2 more answers
The temperature is 5 degrees about 0 degrees. If it drops 8 degrees, what is the temperature after it drops?
ycow [4]

Answer:

-3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
if a dealer buys a car from a manufacturer for $20,480 and sells it for $26,808...what is his markup? rounded to the nearest ten
yulyashka [42]

To find the markup, substract the price at which the car was bought from the price at which the car was sold:

26,808-20,480=6328

To find the markup as a percentage from the original price, set 20,480 to be equal to 100%. If <em>x%</em> represents 6328, then:

\begin{gathered} \frac{x}{6328}=\frac{100}{20,480} \\ \Rightarrow x=\frac{100\times6328}{20,480}=30.898\ldots \end{gathered}

To the nearest tenth, 30.898... = 30.9.

Therefore, the markup is equal to 30.9%.

4 0
1 year ago
Other questions:
  • A satilitle makes 4 revolutions in one day. How many revolutions would it make in 6 1/2 days
    13·1 answer
  • Which expression is equivalent to the radical expression shown below when it is simplified?
    10·1 answer
  • Can anyone help me with this problem
    9·1 answer
  • How many pounds is a 1,000 millimeters
    12·1 answer
  • What value of a makes the statement below true?
    7·2 answers
  • The retail cost of a TV is 50 ​% more than its wholesale cost.​ Therefore, the retail cost is​ ____ times the wholesale cost.
    7·1 answer
  • The total cost (in dollars) for a company to manufacture and sell x items per week is C(x)=50x+400. If the revenue brought in by
    15·1 answer
  • Please answer this correct
    8·2 answers
  • What is pi x pi plz will give croun
    15·2 answers
  • Emmy enjoys mixing and selling scented oils. She recently spent $345.60 on a box of scented oils. She made a profit of $134.60 b
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!