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Temka [501]
3 years ago
12

Vera attends piano lesson twice a

Mathematics
1 answer:
Citrus2011 [14]3 years ago
3 0

Answer:

Hey I think the answer is 28 hours

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Which number is a solution of the inequality? x(7 – x) > 8
m_a_m_a [10]
X(7-x)>8  perform indicated multiplication on left side

7x-x^2>8  divide both sides by -1

x^2-7x<-8  halve the linear coefficient, square it, and add it to both side ie (-7/2)^2=12.25

x^2-7x+12.25<4.25 now the left side is a perfect square

(x-3.5)^2<4.25  take the square root of both sides

x-3.5<±√4.25  add 3.5 to both sides

x<3.5±√4.25

So x>3.5-√4.25 and x<3.5+√4.25  or if you want approximations

x>1.44 and x<5.56 or in interval notation:

x=(1.44, 5.56)  (to nearest hundredths)
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3 years ago
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How do I find the value of x?
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You can find the missing angles that supplements x. 180 - 90 - 25 = 65. The line is 180, so 2(65) + x = 180. x is 50.
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A person is wearing a bracelet with 12 settings around the bracelet. How many different ways can 12 birthstones be arranged arou
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There can be 11 ways 

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The store is 7⁄8 of a mile away from your house. You walked 1⁄5 of a mile towards the store before getting on the bus. If the bu
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27/40-


7/8- 1/5


You just convert it into 40th..   35/40 - 8/40
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4 years ago
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What is 36:52 simplest form
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Answer:

9:13

Step-by-step explanation:

36:52

divide both by two

18:26

divide both by 2

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