MATHEMATICS HIGH SCHOOL

Subtract these polynomials. (3x2 + 3x + 3) - (x2 + 2x + 3) =

A. 2x2 + x
B. 2x2 + 5x
C. 2x2 + 5x + 6
D. 2x2 + x + 6

Answers

Answer 1

Answer:

Answer:

$2x^2+1x$

Step-by-step explanation:

Subtract these polynomials.

$(3x^2 + 3x + 3) - (x^2 + 2x + 3)$

To subtract, we multiply negative sign inside the second parenthesis

$3x^2 + 3x + 3-x^2 - 2x - 3$

To subtract the polynomials we combine like terms

$3x^2-x^2+ 3x- 2x+3-3$

$2x^2+1x$

Answer 2

Answer: 3x^2 -x^2= 2x^2
3x-2x=x
3-3=0

The answer is A.

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Show your calculation below:In the diagram of AABC below, DE is parallel to AB, CD = 15,AD = 9, and AB = 40.The length of DE is(1) 15(2) 24(3) 25(4) 30So your answer isWhat is the relation between ACDE and ACAB?What information in the question helps you get thatconclusion?
Which of the following statements are true? Select all that apply.

The data set below has an outlier.2, 10, 10, 11, 11, 12, 12, 12, 13, 14, 14

Which value is changed the most by removing the outlier?

A: the range
B: the median
C: the lower quartile
D: the interquartile range

Answers

Data set: 2, 10, 10, 11, 11, 12, 12, 12, 13, 14, 14

range: 14 - 2 = 12
median: 12
lower quartile = 10
interquartile range = 4

Data set w/o outlier 2: 10, 10, 11, 11, 12, 12, 12, 13, 14, 14

range: 14 - 10 = 4
median: 12
lower quartile: 10.5
interquartile range = 3.5

The value that change the most by removing the outlier is A.) THE RANGE.

To answer the problem above, we must define what an outlier is. An outlier is a number in a set of data that is smaller or larger than the rest of the data. In this problem, the outlier is 2. To know which value changed the most we solve each with and without the outlier.
A. range: 12(with), 4(without)
B. median: 12 (with), 12 (without)
C. lower quartile: 10.5(with), 11(without)
D. interquartile range: 2(with), 2(without)

The answer is A. range.

If you invest $2,000 today in a bank that gives you a 4 percent annual interest rate, which of these items can you buy in seven years?

Answers

Just the Mountain bike, cause 4% of $2000 is, $80. and $80 for each year for 7 years make $560. now after 7 years your bank account has $2560. Therefore, you can buy a mountain bike, and have $60 left over, if there is no tax included. But if there is tax, your going to be still short by $115.(calculated according to florida's tax, that is 7%.) Anyways if the tax is over 2% you cant get that bike.

All of them

put this in a calculator: 2000*20%*7 then take away the prices or bills and thats how much money is left after the shopping spree

Which equation represents a hyperbola with a center at (0, 0), a vertex at (0, 60), and a focus at (0, −65)?

Answers

Answer:

Step-by-step explanation:

on edge

Answer:

D!!

Step-by-step explanation:

Got it right

There is a closed carton of eggs in Mai's refrigerator. The carton contains "e" eggs and it can hold 12 eggs. What are some possible values of e that will make both e < 12 and e > 0 true?

Answers

Answer:

1,2,3,4,5,6,7,8,9,10,11

Step-by-step explanation:

Any integer greater than 0 and less than 12

The would have to be whole numbers since we don't have parts of eggs in an egg carton

1,2,3,4,5,6,7,8,9,10,11

Answer:

A couple of solutions:

-Any numbers from 1-11

-E can also equal 12, or can equal zero (≤ or ≥)

Step-by-step explanation:

The first value is true because 0 and 12 aren't an option because the two equations incudes 0 and 12, but. 12 is greater and 0 is fewer/less than e. This means that it can be around any number from 1-11, so any of those numbers are possible.

The next value can also be a solution because e can equal any number in that batch. This is possible because it can be greater than zero, less than twelve, or it can be equal to any of those.

I hope this helps :)

-EarthGirl

if 7 cups of flour are needed to make a cake for 9 people, how many cups are needed to make a cake for 15 people?

Answers

7 cups of flour ... 9 people
x cups of flour = ? ... 15 people

If you would like to know how many cups are needed to make a cake for 15 people, you can calculate this using the following steps:

7 * 15 = 9 * x /9
x = 7 * 15 / 9
x = 35/3
x = 11 2/3 cups of flour

Result: 11 2/3 cups of flour are needed to make a cake for 15 people.

4/7 x 1/3 x 7/8= A.1/24 B.1/6 C.2/3 D.6