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
viva [34]
3 years ago
7

(-root3a-a)² please solve this send answer quickly As soon as possible ​

Mathematics
1 answer:
taurus [48]3 years ago
4 0

Answer:

The expression (-root3·a - a)², can be simplified into the form a² × (4 + 2·√3)

Step-by-step explanation:

The given expression can be written as follows;

(-root3·a - a)² = (-√3·a - a)²

Which can be expanded to give;

(-√3·a - a) × (-√3·a - a) = 3·a² + 2·√3·a² +a²

We collect like terms to get;

3·a² + 2·√3·a² +a² =  3·a² +a²+ 2·√3·a² = 4·a² + 2·√3·a²

We factorize out the common coefficients of the terms  to have;

4·a² + 2·√3·a² = a² × (4 + 2·√3)

Which gives the initial expression (-root3·a - a)², to presented in the form a² × (4 + 2·√3).

You might be interested in
Amar keeps picking playing cards out of a standard deck of 52 cards in the hopes that he will
lapo4ka [179]

Answer:

The required probability is, 0.78

Step-by-step explanation:

There are, (52 - 13) = 39 cards which are not spade

5 cards can be chosen from the deck of 52 cards in

^{52}{C}_{5}  ways

and out of these 5 choices, none of them will be spade in,

^{39}{C}_{5}  ways

So,

P(None of the chosen cards is spade)

= \frac {^{39}{C}_{5}}{^{52}{C}_{5}}

\simeq 0.22

Hence,

P(out of these 5 choices, at least one card is spade)

\simeq (1 - 0.22)

= 0.78

4 0
3 years ago
Which value is a solution to the inequality x – 4 > 15.5?
Alex Ar [27]

Answer:

x>19.5

Step-by-step explanation:

Let's solve your inequality step-by-step.

x−4>15.5

Step 1: Add 4 to both sides.

x−4+4>15.5+4

x>19.5

Answer:

x>19.5

8 0
3 years ago
Another way to write f(g(2))
labwork [276]

Answer:

(f◦g)(2)

Step-by-step explanation:

The rule is that f(g(x))=(f◦g)(x)

4 0
3 years ago
Read 2 more answers
Miguel has 1 foot of string. He cuts the string into fourths. How many inches is each piece of string?
Vikentia [17]
Each piece of string has 3 inches each
5 0
3 years ago
Read 2 more answers
A coffee stand sells cups of coffee for $6 and cups of tea for $3. Tuesday a total of 75 cups were sold and the total money coll
Lorico [155]

Answer:

46 Teas and 29 Coffees

Step-by-step explanation:

46×3= 138

29×6= 174

174+138=312

4 0
2 years ago
Other questions:
  • If f(x) =tan(2x) then f'(pi/6)?
    12·2 answers
  • The radius of a circle is (7n-21) inches find circumference of the circle in terms of n.
    13·1 answer
  • Judy earns $65 for working five hours. find the constant rate of variation
    8·2 answers
  • The Sommers invested $5000 for three years at 6.5%. How much interest did the investment earn in three years? What was the total
    11·1 answer
  • On average, A person spends $240 every 3 months on their cell phone bill... What would the price be for 1 month be?... How much
    14·2 answers
  • What is 3/4 divided by 1/2
    15·2 answers
  • Lian is considering two loan options for buying a home in El Paso. Both are simple interest loans.
    10·1 answer
  • Company A is trying to sell its website to Company B. As part of the sale, Company A claims that the average user of their site
    13·1 answer
  • Solve each equation 3m-3/5=2m-1/2
    14·2 answers
  • Find Percent of a Number - Instruction - Level F
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!