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3 years ago

7

Using the ratio of perfect squares method, what is square root of 41 rounded to the nearest hundredth?

1 answer:

Bumek [7]3 years ago

4 0

Hello,

I haven't found the ration of perfect squares methode unless it is to know all square root of numbers <100 (by heart)

As 41 is a primer number, I propose you an other old method (de Héron d'alexandrie)

Explanation:

x²=a
==>2x²=x²+a
==>2x=(x²+a)/x
==>2x=x+a/x
==>x=(x+a/x)/2 that is the recursive formula for the algorithm

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WITCHER [35]

Answer:

(-3,-11)

Step-by-step explanation:

Compare the given quadratic equation with the general quadratic equation.

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Subsitute $-3$ for $x$ in given quadratic equation.

$y=(-3)^2+6(-3)-2\\=9-18-2\\=-11$

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3 years ago

write one way or representing the equation of the given line in point-slope form. then write the equation in slope-intercept for

ehidna [41]

Answer:

$y + 1 =-\frac{5}{3}(x-1)$

$y = -\frac{5}{3}x + \frac{2}{3}$

Step-by-step explanation:

To write the equation of a line you need a point and a slope. Use the two points given to find the slope.

$m = \frac{-1 - 4}{1--2} = \frac{-5}{3}$

Substitute m = -5/3 and the point (1,-1) into the point slope form.

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Use the distributive property to convert to slope intercept form.

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3 years ago

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2 years ago

Which is the iterative rule for the sequence 3, 8, 13, 18, 23, . . . . ?

Nostrana [21]

Answer:

B) 5n – 2

Step-by-step explanation:

Given: 3, 8, 13, 18, 23, ....

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For the nth term, $a_{n}=5n-2$

Hence the iterative rule for the sequence 3, 8, 13, 18, 23, ... is 5n – 2.

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3 years ago