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2 years ago

I need help with 32-35 please and it’s due tomorrow

Mathematics

1 answer:

Ivenika [448]2 years ago

4 0

Answer:

32) 11, rational

33) 0.7, rational

34) approximately 3.9, irrational

35) approximately 31.6, irrational

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Factorise the following questions

lesya692 [45]

Answer:

ii)

$\sqrt{2} x^{2} + 3x + \sqrt{2} \\ = \sqrt{2}x(x + \sqrt{2} ) + x + \sqrt{2} \\ = ( \sqrt{2} x + 1)(x + \sqrt{2} )$

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3 years ago

Any one know how to find the roots of an equation?

soldier1979 [14.2K]

So what you do is
make into ax^2+bx+c=0 form

add-9/2 to both sides
y^2-2y+9/2=0
now we use the quadratice formula which is
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

ax^2+bx+c=0
1y^2-2y+9/2
a=1
b=-2
c=9/2
subsitute
x= $\frac{-(-2)+/- \sqrt{(-2)^{2}-4(1)(9/2)} }{2(1)}$
x= $\frac{2+/- \sqrt{4-(36/2)} }{2}$
x= $\frac{2+/- \sqrt{4-(18)} }{2}$
x= $\frac{2+/- \sqrt{-14} }{2}$
x= $\frac{2+/- \sqrt{-14} }{2}$
x= $1+/- \frac{\sqrt{-14} }{2}$
x= $1+/- \frac{\sqrt{14} \sqrt{-1}}{2}$
x= $1+/- \frac{\sqrt{14} i }{2}$
x= $1+/- \frac{ i \sqrt{14} }{2}$

answer is C

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2 years ago

In the sport competition, France won more gold medals than Italy, who won more gold medals than Korea. If the total number of

worty [1.4K]

Answer:

France = 15, Italy = 14, Korea = 13

Step-by-step explanation:

We are trying to find 3 consecutive integers whose sum is 42, then the highest integer will be France's gold medal count since they won the most, the second highest will be Italy, and the lowest integer will be Korea.

let n be the first/smallest integer, since they are consecutive, the next two integers are n+1 and n+2. Summing these, we get n + (n+1) + (n+2) = 42. Solve to get n = 13, n + 1 = 14, and n + 2 = 15

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2 years ago

Read 2 more answers

at tennis practice, tim practices his backhand and his serve at least 2 hours each day. He works less on his backhand than his s

earnstyle [38]

For the answer to the question above, Tim practices his backhand and his serve at least 2 hours each day this means X =< 2 ( less than or equal to 2 hrs). He works less on his backhand than his serve and practices his serve more than an hour daily. <span>Y < 1</span>

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2 years ago

The price of a DVD, including 5% sales tax is $21.15. What us the price of the DVD, before sales tax?

AfilCa [17]

Answer:

20.14

Step-by-step explanation:

21.15 - 5%(1.01) = 20.14

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2 years ago