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AysviL [449]
2 years ago
10

An algebra tile configuration. There are 3 large tiles, 5 tiles each half the size of a large tile, and 8 tiles each one-quarter

the size of a large tile. Two of the large tiles are labeled plus x squared and 1 is labeled negative x square. Two smaller tiles are labeled plus x and 3 are labeled negative x. Six of the smallest tiles are labeled + and 2 are labeled minus. Which polynomial is represented by the algebra tiles? x2 – x – 4 x2 – x + 4 3x2 – 5x + 8 3x2 – 5x – 8
Mathematics
2 answers:
alexgriva [62]2 years ago
8 0

Answer:

x² - x + 4

Step-by-step explanation:

Algebra tile configuration involve the use of tiles to represent algebra problem in polynomial form.

Given that:

There are 3 large tiles. Two of the large tiles are labeled plus x squared and 1 is labeled negative x square. Therefore the large tiles is given by:

2(x²) + (-x²) = 2x² - x² = x²

5 tiles are each half the size of a large tile with Two labeled + x and 3 are labeled - x. The algebra of the small tiles is:

2(+x) + 3(-x) = 2x - 3x = -x

8 tiles are each one-quarter the size of a large tile, Six of the smallest tiles are labeled +1 and 2 are labeled -1. The algebra of the smallest tiles is:

6(+1) + 2(-1) = 6 - 2 = 4

Therefore the polynomial is given by:

x² + (-x) + (4) = x² - x + 4

algol132 years ago
4 0

Answer:

option B

Step-by-step explanation:

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A local sorority sold hot dogs and bratwursts at the spring fling picnics. The first day they sold 8 dozen hot dogs and 13 dozen
Sergeu [11.5K]

Answer: Cost of each hot dog and bratwursts would be $1.1 and $1.35 each.

Step-by-step explanation:

Since we have given that

Cost of each dozen hot dogs be 'x'.

Cost of each dozen bratwursts be 'y'.

The first day they sold 8 dozen hot dogs and 13 dozen bratwursts for $316.20.

So, the equation would be

8x+13y=\$316.20

.The second day they sold 10 dozen hot dogs and 15 dozen bratwursts for a total of $375.00.

So, the equation would be

10x+15y=\$375.00\\\\2x+3y=\$75

So, the equations becomes

8x+13y=316.20--------------(2)\\\\(2x+3y=75)\times 4\\\\\implies 8x+12y=300------------(1)

So, by elimination method, we get that

8x+13y=316.20\\\\(-)8x+(-)12y=(-)300\\\\--------------\\y=\$16.20

Put the value of y in the eq(1), we get that

2x+3y=75\\\\2x+3(16.20)=75\\\\2x+48.6=75\\\\2x=75-48.60\\\\2x=26.4\\\\x=\dfrac{26.4}{2}\\\\x=\$13.2

Hence, the cost of hot dogs would be \dfrac{13.2}{12}=\$1.1

And the cost of bratwursts would be \dfrac{16.2}{12}=\$1.35

4 0
2 years ago
The function f is continuous son the interval [2, 10] with some of its values given in the table below. Use a right Riemann Sum
Marta_Voda [28]

The 4 subintervals are given: [2, 4], [4, 7], [7, 9], and [9, 10].

Each subinterval has length: 4 - 2 = 2, 7 - 4 = 3, 9 - 7 = 2, and 10 - 9 = 1.

Over each subinterval, we take the value of the function at the right endpoint: 3, 8, 15, and 18.

Then the integral is approximately

\displaystyle\int_2^{10}f(x)\,\mathrm dx\approx3\cdot2+8\cdot3+15\cdot2+18\cdot1=78

so 78.0 is the correct answer.

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2 years ago
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frutty [35]
Take the amount 14 MPG (miles per gallon)

Then take the number of miles to go (133 miles to go)

Divide, like so:

133/14
= 9.5





3 0
2 years ago
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A horticulturist conducted an experiment on 110 thirty-six inch plant boxes to see if the amount of plant food given to the plan
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8 0
2 years ago
The slope, m, of a linear equation can be found using the formula m = StartFraction y 2 minus y a Over x 2 minus x 1 EndFraction
aniked [119]

Answer:

y2 = m(x2-x1)+y1

Step-by-step explanation:

Given the formula for finding the slope of a linear equation to be;

m = y2-y1/x2-x1 where x and y are from the ordered pairs (x1,y1) and (x2,y2)

To get the equivalent equation for y2, we will make y2 the subject of tbw formula from the equation as shown:

m = y2-y1/x2-x1

Cross multiplying

m(x2-x1) = y2-y1

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Adding y1 to both sides of the equation we have;

mx2-mx1 + y1= y2-y1+y1

y2 = mx2-mx1 + y1

y2 = m(x2-x1)+y1

This gives the resulting equation to solve for y2

6 0
2 years ago
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