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Tatiana [17]
3 years ago
7

2x+3x+4

Mathematics
2 answers:
ivolga24 [154]3 years ago
7 0
2x+3x+4 is equivalent with 5x+4 and 3(4x+2) is equivalent to 12x+6 and then the last two
AysviL [449]3 years ago
3 0

Answer:

27x9 - 12x6 - 24x3 + 14x2 + 17x + 3

 —————————————————

         4x3 - 5x2 + 2x + 3

Step-by-step explanation:

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Find the probability of throwing a sum of 10 at least 9 times in 10 throws of a pair of fair dice.
jekas [21]
So the possible ways of throwing a sum of 10 is 4&6, 5&5, 6&4. All possible ways of throwing a pair of dice equal 36, so divide 3 by 36. Then, divide this number by 9 to get the possibility of it being at least 9 times, because the last throw doesn't affect it.
5 0
4 years ago
if the length of a square is decreased by 1 unit , the area will be 8 square units.Write an equation for the area of the square
JulsSmile [24]

Answer:

(x-1)²=8.

Step-by-step explanation:

1) if the length before decreasing is 'x', then after decreasing it is x-1;

2) then the area is (x-1)²=8.

PS. the length before decreasing is 1+2√2.

6 0
3 years ago
Is 147 a perfect square? Give reasons
gregori [183]
147 is not a perfect square. The reason 147 is not a perfect square is because, we know that 144 is a perfect square because you can divide it by 12. So that means that your square root would be inbetween 12 and 13. If you multiple 12•12 you get 144. And if you multiply 13•13 you get 169. So neither of those numbers are equal 147 so 147 is NOT a square but the closest square root is 12.
3 0
3 years ago
How do you use the product of 123 times 47 to find the product of 123 times 0.47 explain the difference in the two products?
iragen [17]
123•47=5781
123•0.47=57.81

you can use the product of 123•47 to help you solve for the product of 123•0.47 by seeing that all you do is move the decimal yo the left 2 spaces. The reason you move the decimal to the left 2 spaces is because 47 is 0.47 just the decimal was moved 2 spaces to the right.
3 0
4 years ago
Find the volume of the cone. Leave your answers in therms of pi.
SOVA2 [1]
Hey there! :)

The formula for finding volume of a cone = (π · r² · h) ÷ 3

r = 3
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h = 7

7 × 3 × π = 21π

Your answer is C. 21π³

Hope this helps :)
5 0
3 years ago
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