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
Karo-lina-s [1.5K]
3 years ago
14

The expression (a^2 + b^2)^2 is equivalent to

Mathematics
1 answer:
Alexxandr [17]3 years ago
6 0

Answer:

Step-by-step explanation:

(x + y)² = x² + 2xy + y²

(a² + b²)²  = (a²)² + 2*a²*b² + (b²)²      {x = a² ;  y = b²}

                = a⁴ +2a²b² + b⁴    

You might be interested in
A fast food restaurant executive wishes to know how many fast food meals teenagers eat each week. They want to construct a 99% c
Lana71 [14]

Answer:

The minimum sample size required to create the specified confidence interval is 2229.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.005 = 0.995, so z = 2.575

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

What is the minimum sample size required to create the specified confidence interval

This is n when M = 0.06, \sigma = 1.1

0.06 = 2.575*\frac{1.1}{\sqrt{n}}

0.06\sqrt{n} = 2.575*1.1

\sqrt{n} = \frac{2.575*1.1}{0.06}

(\sqrt{n})^{2} = (\frac{2.575*1.1}{0.06})^{2}

n = 2228.6

Rounding up

The minimum sample size required to create the specified confidence interval is 2229.

7 0
3 years ago
Four pounds of apples cost 3.88. what is the price per pound
Inga [223]

Answer:

0.97 cents

Step-by-step explanation:

4/3.88=0.97

price per pound=0.97 cents

BRAINLIEST APPRECIATED!

HOPE YOU ARE HAVING A GOOD DAY!

6 0
3 years ago
The following table shows the monthly charges for subscribing to the local newspaper.
Ostrovityanka [42]
D. independent -- Number of Months
dependent -- Total Cost

The dependent Variable depends on the independent variable so, as the number of months change, the total cost changes.
4 0
3 years ago
Pls answer il make brainliest hurry
Liono4ka [1.6K]

Answer:

1/2

Step-by-step explanation:

6 0
3 years ago
My original lenguaje is Spanish so I'm really bad in English.
NNADVOKAT [17]

Step-by-step explanation:

lo siento much solo si fuera Buena con matimaticas.

6 0
3 years ago
Other questions:
  • A football field measures 300 feet in length. It can also be expressed as approximately 5 7x 10miles. If the
    7·1 answer
  • Write one problem using a dollar amputated of $420 and a percent of40% provide the solution to your problem
    9·1 answer
  • The term 25ab and which other term are like terms?
    8·2 answers
  • If a=22.3 and B=47°18’ find c (picture provided)
    10·1 answer
  • 10. 14. A new DVD player has a purchase price of $430. With the extended warranty, the total cost is
    5·1 answer
  • Please help me out plz
    14·1 answer
  • Kerry has a new phone plan. It works by charging $20 per month and then $0.10 for each minute over 200 minutes.
    11·1 answer
  • Please help me with this geometry question and show work
    13·1 answer
  • Please help i’ll give brainliest
    11·1 answer
  • URGENT 100 POINTS
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!