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bixtya [17]
3 years ago
14

What equation demonstrate that the set of polynomials is not closed under the certain operations

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0
It is not closed under division.
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What two formulas are necessary to find the area of a segment of a circle?
tresset_1 [31]

Answer:

They are: area of sector and area of triangle

Step-by-step explanation:

Area of segment=area of sector - area of triangle

So we need both the area of sector and area of triangle to calculate for the area of a segment

8 0
3 years ago
C=3<br> c2 + 5 <br><br><br><br><br><br><br><br><br> ..............
vaieri [72.5K]

Answer:

3x2+5=11

Step-by-step explanation:

8 0
2 years ago
Yianni typed a 36-word paragraph in 2/3 of a minute<br> what is her typing speed in words per minute
elena-s [515]

I think it would be 54 words per minute

36÷2=18 which is 1/3 of a minute so we multiply 18 by 3 to get how many words in one minute, 18×3=54

4 0
3 years ago
Two cars leave at the same time from points A and B, the distance between them is 280 km. If the cars meet each other, they’ll m
kykrilka [37]
Set up the following equations:

2x + 2y = 280

14x - 14y = 280

x represents car A's speed, and y represents car B's speed.

We'll use elimination to solve this system of equations. Multiply the first equation by 7:

(2x + 2y = 280) * 7 = 14x + 14y = 1960

14x - 14y = 280

Combine both equations:

28x = 2240

Divide both sides by 28 to get x by itself:

x = 80

The speed of car A is 80 mph.

Since we now know the value of one of the variables, we can plug it into the first equation:

2(80) + 2y = 280

160 + 2y = 280

Subtract 160 from both sides.

2y = 120

Divide both sides by 2 to get y by itself:

y = 60

The speed of car B is 60 mph.

7 0
3 years ago
You buy 3 bags of takis for $2.25 each. the sales tax is 8%. How much was the sales tax
aev [14]

Answer:

0.54 is the sales tax.

Step-by-step explanation:

2.25 x 3 = 6.75

When trying to do percentages move the decimal place to the right 2 times.

6.75 x 0.08= 0.54.

5 0
3 years ago
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