MATHEMATICS MIDDLE SCHOOL

Which algebraic expression is a polynomial?4x? - 3x + 2
6x2 + χ? - 5
8x2 + x
-2x +
Ο

Answers

Answer 1
Answer:

\text{A polynomial must have multiple terms in its expression}\n\n\text{That means we could eliminate the last answer choice automatically}\n\n\text{There are different types of polynomials, in which you could see that}\n\text{there is a trinomial in one of the answer choices}\n\n\text{Your best answer choice would be the 2nd one:}\,\,6x^2+x+5\n\n\text{This is because there are different terms and there are multiple of them}

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Find the value of: if 3x+2y = 20 and xy = 
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A house on the land measures 45 feet by 38 feet,a wooded area covers 118 feet by 60 feet,and the front yard is 78 feet by 40 feet.The remainder of the landis farmed.How many acres of land are farmed?Round to the nearest tenth.Explain your answer.(Hint: 1 acre = 43,560 square feet)

Answers

rectanglearea=legnth timees width
triagnlearea=1/2base times height

ok so we find volume of entier land first

we can cut into triangle an rectangle

triangle=height=650-200=450
base=600
area=1/2*600*450=135000 ft^2

rectangle=200 times 600=120000

add
135000+120000=255000ft^2


find other areas and subtract
areahouse=45*38=1710
areawooded=118*60=7080
frontyard=78*40=3120
add
1710+7080+3120=11910

minus

255000-11910=243090

how many acres are farmed

43560ft^2=1acre
divide both sides by 43560
1ft^2=1/43560 acre

multiply both sides by 243090
243090ft^2=243090/43560acre=5.5805acre=5.6acre rounded

answer is 5.6 acer

[(25-11)+(15-9)] divided by 5

Answers

Well, first of all, you have to calculate what is in the bracket first. so;
[14] + [6]
   That is;
14+6=20
  Since it is divided by 5, that will be  20/5
  So the answer is 20/5=4
  Hope i helped. Have a nice day.
pemdas so parenthasees first
25-11=14

and 15-9=6
now we have
[(14)+(6)]/5
parenthasees
add 14+6=20
[20]/5
4 the asnwer is 4

If R is the set of all integers, choose the set S that will make the following statement false.S ⊆ R
1 S = {−2, −1, 0, 1, 2}
2 S = {0, 0.5, 1, 1.5}
3 S = {0}
4 S = {1, 2, 3, 4}

Answers

Answer: 1 S = {−2, −1, 0, 1, 2}

Step-by-step explanation:

Integers are whole numbers that could be positive or negative .

This means that

R = { ... -3 ,-2 , -1 , 0 , 1 , 2 , 3 , 4 , ...}

S ⊆ R means that all elements of S is also an element in R , therefore :

S = { -2, -1 ,0, 1 , 2 ...}

Is -22.96 an integer

Answers

Hello There!

-22.96 is not an integer.

An integer is any whole number that is positive or negative. A whole number includes 0 and counting numbers so -22.96 would not be considered an integer.

Answer:

no it is not an integer

Step-by-step explanation:

nope.

Integers are whole numbers that are not fractions.

this is not the case in -22.96 as the decimal 0.96 constitutes the faction component of the number

Owen had three different kinds of stickers that he wanted to put on paper. he put a bird sticker on every 30th paper, a sport sticker on every 50th paper and a robot sticker on every 60th paper. will any of the first 600 pages have all three stickers? if so, which pages?

Answers

60
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300! this number can you divide by 60, 50 and 30
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600! this number too

How to justify a/b x b/c = a/c?

Answers

a/b times b/c is = ab/bc
which can be written as a/c times b/b
anything over itself is 1 so b/b is one
a/b times b/c = a/c
well a/b * b/c = ab/bc, and since b/b= 1 you get 1a/c or just a/c :)
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