2 years ago

4. solve the equation,,,,,,,,

Mathematics

1 answer:

statuscvo [17]2 years ago

4 0

Answer:

A. 0.76, -0.76

Step-by-step explanation:

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alexandr1967 [171]

-Opens down
-Maximum
-Y int (0,3)
-Axis of symmetry x=0
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3 years ago

Find the common ratio of the following geometric sequence 5/12, 1/4 , 3/20,9/100,27/500

mixas84 [53]

All you have to is divide two consecutive terms to calculate the common ratio

1/4 divided by 5/12 = 1/4 * 12/5 = 12/20 = 3/5

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3 years ago

Completing the square:

vichka [17]

Answer:

Step-by-step explanation:

Key to this method is remembering that

$(a+b)^2 = a^2 + 2ab + b^2$

So, if you divide the coefficient of x by 2 and square it, that will complete the square. With that in mind, things are easy.

6/2 = 3, so add $3^2 = 9$

$x^2+6x+9 = (x+3)^2$

So, c=9

Similarly, for the other two,

$c = (\frac{-34}{2} )^2 = (-17)^2 = 289$

You don't really have to worry about the sign, since squaring will always make it positive

$(\frac{25}{13}) ^2 = \frac{625}{169}$

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3 years ago

Raphael works 12 hours each week. He earns £4 per hour. Tom saves 1/3 of earnings each week. How many weeks does it take Tom to

olga_2 [115]

Raphael works 12 hours each week. He earns £4 per hour. Tom saves 1/3 of earnings each week. How many weeks does it take Tom to save £80?

5 weeks

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3 years ago

Fully simplify to one fraction X/x+9 +5x+1/x

Sedaia [141]

Answer:

(5x^2+10x+1 )/x

Step-by-step explanation:

=(x/x)+9+5x+(1/x)

=(5x^2+10x+1 )/x

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3 years ago