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
Salsk061 [2.6K]
3 years ago
15

Binomial Coefficients (30pts) 1. Write (a + b)^2 as a polynomial in standard form. Show work (FOIL/distributive property).

Mathematics
1 answer:
Darina [25.2K]3 years ago
4 0

Answer:

a^2 + 2ab + b^2

Step-by-step explanation:

Given

(a + b)^2

Required

Express as a standard polynomial

We have:

(a + b)^2

Rewrite as:

(a + b)(a + b)

Open bracket

a^2 + ab + ab + b^2

Add like terms

a^2 + 2ab + b^2

You might be interested in
The Hamden board of education wants to know how the community feels about building a new media center for the middle school. The
Aleks [24]
According to the statement above, The Hamden board of education called every <span>tenth person on the registration list. So let's analyze each case:

</span><span>The sample is not randomly chosen (FALSE)

Given that the statement doesn't tell us anything about the way they choose the sample, it is reasonable to conclude that this is a </span>randomly chosen. They called every tenth person on the registration list until the number of people was 40.

The sample should be larger to give more reliable information (TRUE)

You did not have to use mathematics to determine that you would need more information to get a conclusion. You must increase the sample, that is, the sample must be larger to give a reliable information.

The sample size is too large to make inferences (False)

This is explained in the previous item. If the sample should be lager is because the size is not too large.

The sample size is too small to represent the population (TRUE

This is true because 40 voters represent barely 0.5% of the entire list. This list has 7300 voters, so getting the conclusion from this sample doesn't provide with a strong conclusion.

<span>The sample size is too small and will show larger variation. (FALSE)

Although the sample size is too small, the sample size not necessarily will show variation. In fact, it is possible that it does not show any variation and most of the people feel well about building a new media center for the middle school but it doesn't mean that the whole community does.

The sample is invalid because it randomly chooses voters. (FALSE)

It is false because in probability studies the sample is chosen randomly, so you get conclusions about the whole population always taking samples that represent the population as a whole.

The sample size is too small and can lead to false inferences (TRUE)

You can get false conclusions given that the sample size is too small. <span>It's important to note that the sample size supports the conclusion of the study, so the sample must increase to have a reliable study.
</span>
</span>
7 1
3 years ago
Read 3 more answers
Please help i put 15 points for this
Arturiano [62]

Answer:

The first & the third are true.

Step-by-step explanation:

If you put the equation on the calculator, you'll get that x=1 then, the equation divides by (x-1) and has a remainder =0 & (x-1) is a factor of the equation since it gives a remainder=0

5 0
3 years ago
Identify: Numerical expression, variable expression, Equation or Inequality? <br> 1. 6 + 3
Shkiper50 [21]
That is a numerical expression. If it was an equation, it would have an equal sign.
5 0
3 years ago
Can somebody help me with this question
goblinko [34]

A function is a relationship where each x-value is paired with exactly one y-value.

When looking at a graph, you want to ask yourself, "Can I find any two points on this graph that have the same x-value?"

I can see with x=8 that there would be two points on that graph with an x-value of 8, making this not a function.

People call this test "the vertical line test" because any vertical line really represents a single x-value. If any vertical line hits the graph more than once, the graph cannot be a function, because that value of x has more than one y-value.

8 0
3 years ago
The sum of the digits of a two-digit number is 13. The units digit is one more than twice the tens digit. Find the number.
tatyana61 [14]

Answer:49

Step-by-step explanation: 9+4=13 4x2=8 8+1=9

9 is the units digit

4 is the tens digit

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the form of the two squares identity?
    6·1 answer
  • Quincy feeds his dog 2.75 cups of dog food each day. Each cup of dog food costs $1.25. He multiplies the numbers together to det
    6·2 answers
  • How do I solve 1/26=x/1300?
    9·1 answer
  • a number that cannot be expressed as a quotient of two integers; a nontermniating, nonrepeating decimal
    6·1 answer
  • Find the surface area of the composite solid.
    7·1 answer
  • What is the value of X to the nearest tenth??? ​
    5·1 answer
  • Find the product of (2/3)x and (1/2x²)+6x-3​
    12·1 answer
  • What’s the answer (no link I give brainly)
    11·1 answer
  • The original price of a book is x dollars. The book is sold for 10% discount. After that, the increased by 25%
    5·1 answer
  • The Gross Domestic of a country in the first quarter of 2014 was $1.3299×10×8.<br> GPD=$
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!