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4 years ago

Do anybody know about the rainbow strategy in math pls help me under stand teach me pls

Mathematics

1 answer:

xenn [34]4 years ago

3 0

i dont know if i can explain it right, but its kinda just like matching numbers to an equation with other numbers

google videos can explain it better and show

hope this help :)

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Rewrite the function by completing the square.

bixtya [17]

Answer:

$g(x) = 4(x - 2)^2 -9$

Step-by-step explanation:

Given

$g(x) = 4x^2 - 16x + 7$

Required

Complete the square

Rewrite so that $x^2$ has 1 coefficient

$g(x) = 4(x^2 - 4x) + 7$

Take half of the coefficient of x

$\frac{4}{2} = 2$

Square the result

$(\frac{4}{2})^2 = 2^2$

$(\frac{4}{2})^2 = 4$

Add and subtract the result in the bracket

$g(x) = 4(x^2 - 4x + 4 - 4) + 7$

Expand the bracket to remove -4

$g(x) = 4(x^2 - 4x + 4) - 16 + 7$

$g(x) = 4(x^2 - 4x + 4) -9$

Expand the bracket

$g(x) = 4(x^2 - 2x -2x+ 4) -9$

Factorize

$g(x) = 4(x(x - 2) -2(x-2)) -9$

Factor out x - 2

$g(x) = 4((x - 2)(x-2)) -9$

Express as square

$g(x) = 4(x - 2)^2 -9$

3 0

3 years ago

Rewrite as a simplified fraction.<br> 3.5 repeating = ?

timurjin [86]

Answer: I believe 7 / 2

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What are the answers to questions one and three

Aleksandr [31]

Answer:

1) x=2, x=-2; 3) x=8/3

Step-by-step explanation:

Use the quadratic formula: -b+-sqrtb^2-4ac/2a

Make y 0 to find the x intercept

3 0

3 years ago

Select the correct answer.

Solnce55 [7]

Answer: the answer would be 1/8

Step-by-step explanation:

in decimal form it would be 0.125 so the answer is 1/8

hope this helps.

4 0

3 years ago

Read 2 more answers

Free_Kalibri [48]

1. 0.01333
2. 0.29069767
3. 0.45977011

7 0

3 years ago