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Liula [17]
3 years ago
7

Which expression have a value between 7 and 8 π+4 2II √62 √48 √56​

Mathematics
1 answer:
lilavasa [31]3 years ago
7 0

Answer:

square root 48

Step-by-step explanation:

It is square root 48 because it is between 7 and 8 not exactly if it was exactly 7 and 8 it would be square root 56

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f(x) = square root ( x^4 -16x^2) let f be the function given by: . . a) Find the domain of f.. b) Find f '(x). c) Find the slope
Bond [772]
A ) The domain:
x^{4} -16 x^{2}  \geq 0 \\  x^{2} ( x^{2} -16) \geq 0 \\  x^{2} -16 \geq 0 \\  x^{2}  \geq 16
x ≤ -4  and x≥ 4  or:  x ∈ ( - ∞ , - 4 ) ∪ ( 4  , + ∞ )
b ) f ` ( x ) = \frac{1}{2 \sqrt{ x^{4} -16 x^{2} } } *( 4 x^{3} - 32 x ) = \\ = \frac{2x( x^{2} -8)}{ \sqrt{ x^{4}-16 x^{2}  } }
c ) The slope of the line normal to the graph at x = 5
m = -1 / f `(x)
f ` ( x ) = \frac{10(25-8)}{ \sqrt{625-400} }=  \frac{10*17}{15} = \frac{34}{3}
m = - 3/34 

8 0
3 years ago
AC=23,<br> AB=2x+2, and <br> BC=3x+6<br> Find BC.
Kryger [21]

Answer: 9

Step-by-step explanation:

8 0
3 years ago
2. For the function y = 1/2x + 6, if the input is x = -4, the output is y =
lys-0071 [83]

Answer:

y = 4

Step-by-step explanation:

Substitute the input x = - 4 into the function and evaluate for y

y = \frac{1}{2} × - 4 + 6

  = - 2 + 6

  = 4

 

4 0
3 years ago
If the number 3 were added to the set {1,1,3,3,4,4,5}, which central tendency would change? A)Mean B)Mode C)Range D)Median
mr_godi [17]

Answer: mode

Step-by-step explanation:

7 0
4 years ago
The lengths of the legs of a right triangle are 12cm and 35cm. what is the length of the hypotenuse?
goldenfox [79]
To find the length of the hypotenuse we must use Pythagoras' Theorem: c^2 = a^2 + b^2, where c is the hypotenuse and a and b are side lengths

c^2 = a^2 + b^2
c^2 = 12^2 + 35^2
c^2 = 144 + 1225
c^2 = 1369
c = 37 cm

6 0
3 years ago
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