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Vaselesa [24]
4 years ago
7

Please help will give brainliest

Mathematics
2 answers:
gulaghasi [49]4 years ago
7 0
The entire fraction is inside, so do the square root of each number normally:

Sqroot (16) = 4
Sqroot (49) = 7

Answer: 4/7
oksano4ka [1.4K]4 years ago
5 0
That would be 4/7.

The square root of 16 is 4.
The square root of 49 is 7.

4 is the numerator and 7 is the denominator.

Hope this helps!

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If f(1) = 8 and f(n) = 2f(n − 1) then find the value of f(5).
Andrei [34K]

2f(2Answer:

Step-by-step explanation:

f(1)=8

f(2)= 2(8) = 16

f(3) = 2(16) = 32

f(4) = 2(32) = 64

f(5) = 2(64) =128

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3 years ago
Which of the following events are independent?
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1 only

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4 years ago
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Aneli [31]

Answer:

The required equation is x=\frac{-(-9)\pm \sqrt{(-9)^2-4(1)(-20)}}{2(1)}.

Step-by-step explanation:

If a quadratic equation is ax^2+bx+c=0, then the quadratic formula is

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

The given quadratic equation is

x^2-9x-20=0

Here, a=1, b=-9 and c=-20.

Substitute a=1, b=-9 and c=-20 in the above quadratic formula.

x=\frac{-(-9)\pm \sqrt{(-9)^2-4(1)(-20)}}{2(1)}

Therefore the required equation is x=\frac{-(-9)\pm \sqrt{(-9)^2-4(1)(-20)}}{2(1)}.

6 0
3 years ago
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larisa86 [58]

Answer:

Step-by-step explanation:

3x+4y=−23.........(1)

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Putting (2) in (1)

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Putting y into (2)

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3 years ago
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